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WO2004045740A1 - Agent de purification pour eaux usees et eaux boueuses - Google Patents

Agent de purification pour eaux usees et eaux boueuses Download PDF

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Publication number
WO2004045740A1
WO2004045740A1 PCT/JP2003/014807 JP0314807W WO2004045740A1 WO 2004045740 A1 WO2004045740 A1 WO 2004045740A1 JP 0314807 W JP0314807 W JP 0314807W WO 2004045740 A1 WO2004045740 A1 WO 2004045740A1
Authority
WO
WIPO (PCT)
Prior art keywords
wastewater
water
sludge
agent
sludge water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2003/014807
Other languages
English (en)
Japanese (ja)
Inventor
Tadahiro Yoshida
Yutaka Yoshida
Yumi Yoshida
Kihachi Ogaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KK Ysd
YSD KK
Original Assignee
KK Ysd
YSD KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KK Ysd, YSD KK filed Critical KK Ysd
Priority to JP2004553217A priority Critical patent/JPWO2004045740A1/ja
Priority to AU2003302081A priority patent/AU2003302081A1/en
Publication of WO2004045740A1 publication Critical patent/WO2004045740A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5254—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using magnesium compounds and phosphoric acid for removing ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds

Definitions

  • the present invention relates to a purification agent for wastewater and sludge water.
  • the present invention aggregates and separates suspended suspended substances contained in plating wastewater, various factory wastewater, wastewater from various construction sites, and dredged sludge water in sewage, sea, lakes, swamps, rivers, etc. And purification treatment agents for adsorbing and fixing and separating dissolved pollutants.
  • inorganic and organic coagulants have been used as purification agents for polluted wastewater.
  • examples of the inorganic coagulant aluminum sulfate, polychlorinated aluminum two ⁇ beam (PAC), sodium aluminate (N a A 1 0 2) aluminum compounds such as iron sulfate (F e S 0 4 ⁇ 7 ⁇ 2 ⁇ ), iron compounds or quicklime such as iron chloride (F e C 1 3 ⁇ 6 H 2 0), such as slaked lime is used.
  • organic coagulant polyacrylamide, sodium alginate and the like are used.
  • the conventional inorganic and organic flocculants as described above are primarily intended for the flocculation and separation of suspended solids (SS) in wastewater, but they are only capable of removing 50, OOOppm of SS. However, it cannot be said that it has a sufficient coagulation effect.
  • the conventional coagulant has a pH dependence, and the appropriate pH varies depending on the treatment agent, and the pH may need to be adjusted during treatment. For example, when a divalent or trivalent iron salt is used as a flocculant, the optimum pH is about 6 to 8.
  • polyacrylamides have a cloud point depending on pH and a temperature also has a cloud point (60.C).
  • polyaluminum chloride is an excellent one that does not significantly change the pH of water, and is used after being dissolved in water.
  • SS is adsorbed and cross-linked, the water content of the sludge that has been separated and coagulated is high, and it is necessary to further drain the dewatered sludge after treatment.
  • SS is coagulated and separated with a conventional inorganic or organic coagulant, dehydrated, and the solidified sludge is easily dissolved in water.
  • problems such as elution.
  • organic coagulants such as alumina, silicate, calcium sulfate, acrylamide coagulant and alginic acid coagulant, aluminum sulfate, aluminum chloride, and sodium carbonate, calcium carbonate, magnesium carbonate and dolomite.
  • a purifying treatment agent for polluted wastewater containing at least one substance has been proposed (for example, Japanese Patent No. 2774096). However, even with such a purification agent, heavy metals, particularly chromium and zinc, could not be sufficiently removed. Disclosure of the invention
  • the present invention can sufficiently coagulate suspended suspended solids and heavy metals, especially chromium and zinc, regardless of the pH of the wastewater or sludge water, even if the suspended suspended solids in the wastewater or sludge water are relatively high in concentration. (Sedimentation) ⁇ Separation is possible, when the separated water is discharged: pH adjustment is not required, the water content of the coagulated sediment is low, the coagulated sediment hardly dissolves in water, and especially the coagulated heavy metal is almost It is an object of the present invention to provide a chemical for treating wastewater and sludge which does not re-eluted.
  • the present invention relates to a purification agent for wastewater and sludge water, comprising an organic acid, a crystalline aluminokerate, an aluminum salt, a magnesium salt, a calcium salt, and a sodium salt.
  • the agent for purifying wastewater and sludge water of the present invention is capable of removing suspended suspended substances in wastewater and sludge water. Even at relatively high concentrations, it is possible to sufficiently coagulate (sediment) 'separate suspended solids and heavy metals, regardless of the pH of wastewater or sludge water.
  • the purification treatment agent of the present invention when used, the: H adjustment is not required when the separated water is discharged.
  • the coagulated sediment has a low water content and is hardly soluble in water.
  • the coagulated heavy metal hardly elutes again.
  • the purification agent for wastewater and sludge water of the present invention comprises, as constituents, an organic acid, a crystalline aminosilicate, an anolemminium salt, a magnesium salt, a canoresium salt, and a sodium salt.
  • an organic acid a crystalline aminosilicate
  • an anolemminium salt a magnesium salt
  • a canoresium salt a sodium salt.
  • the above object can be achieved for the first time by including these components in combination.
  • the pH of the resulting purification agent will increase; if the suspended solids in the wastewater or sludge are relatively high, the suspended solids (Sedimentation) 'Can not be separated; requires pH adjustment at the time of discharge of separated water; high water content of aggregated sediment; aggregated sediment is easily dissolved in water Problems such as re-elution of aggregated heavy metals; In particular, if organic acids are not contained, heavy metals, especially copper and zinc, cannot be sufficiently removed.
  • heavy metals that can be separated and removed by the purification treatment agent of the present invention are chromium, iron, manganese, aluminum, particularly chromium, and $ 0.
  • the organic acid used in the present invention is a low molecular weight organic compound which dissolves in water and exhibits an acidity. Considering that the separated water after the purification treatment is discharged into the natural world, the organic acid has a low molecular weight which exists naturally. Preference is given to using natural organic acids.
  • the molecular weight of the organic acid is 1000 or less, preferably 10 to 1000, more preferably 50 to 300, and particularly preferably 100 to 200.
  • Such preferred natural organic acids include, for example, malic acid, acetic acid, oxalic acid, tartaric acid, benzoic acid and the like.
  • a natural organic acid having two or more, especially two, hydroxyl groups in the molecule and one or more, particularly one hydroxyl group is more preferably used.
  • Such more preferred natural organic acids include malic acid, tartaric acid and the like, most preferably malic acid.
  • the content of the organic acid is not particularly limited as long as the effects of the present invention can be obtained, and is usually 0.5 to 5% by weight, preferably 1 to 3% by weight based on the total amount of the purification agent. . Two or more kinds of organic acids may be used, and in such a case, their total content should be within the above range.
  • Crystalline Aruminokei salt has the general formula: having an x A l 2 0 3 y S i 0 2 3 -dimensional network structure represented by, and is not particularly limited as much as possible capture heavy metals Ion in the air gap, the In the present invention, so-called zeolite is preferably used.
  • Zeolite is a tectoaluminosilicate with a three-dimensional network structure.
  • the chemical structure of zeolite consists of a silicon tetrahedron formed by bonding silicon (S i) and four oxygens (O) existing around it, and by replacing the tetrahedral silicon.
  • the main component is an aluminum-substituted aluminum tetrahedron (4-coordinated anorem), and these tetrahedra are connected to share four vertices.
  • Voids of such a structure may contain weakly retained water that is easily dehydrated by heating or degassing, or may already contain alkali metal ions that are easily exchanged when capturing heavy metal ions. You may hold it. It is considered that the heavy metal ion trapping action of zeolite is caused by the generation of a permanent negative charge at the position of the four-coordinate aluminum based on the electrical balance between A1 and O.
  • the place of origin and production method are not particularly limited, and natural zeolite produced naturally, synthetic zeolite of high purity used as a catalyst, or artificial zeolites obtained from waste such as coal ash Any of zeolites may be used.
  • the content of the crystalline aluminosilicate is 10 to 25% by weight, preferably 10 to 20% by weight, based on the total amount of the purification agent. Two or more zeolites may be used, and in such a case, their total content may be within the above range.
  • the aluminum salt is one or more compounds selected from the group consisting of aluminum sulfate, potassium aluminum sulfate, and aluminum chloride.
  • aluminum sulfate and potassium aluminum sulfate are used in combination.
  • Potassium aluminum sulfate formula is represented by KA 1 (S 0 4) 2 , Ru der what is referred Miyouban, Karimiyouban, and potassium Millau ⁇ van General. 20-40 weight 0 I relative to the content of the aluminum salt water treating agent total amount is preferably from 30 to 40 wt%. When two or more types of aluminum salts are used, their total content may be within the above range.
  • the magnesium salt is, for example, magnesium carbonate.
  • the magnesium carbonate is supplied by dolomite. Since dolomite contains magnesium carbonate and calcium carbonate as main components, by using dolomite, magnesium carbonate and carbonated calcium carbonate as a calcium salt described later can be simultaneously supplied.
  • the content of magnesium salt is 0.1 to 3% by weight, preferably 0.3 to 1.5% by weight, particularly 0.5 to 0.8% by weight based on the total amount of the purification agent. /. It is. When two or more magnesium salts are used, their total content may be within the above range.
  • Calcium salt is one or more compounds selected from the group consisting of sulfated calcium and calcium carbonate.
  • calcium sulfate and calcium carbonate are used in combination.
  • calcium sulfate and calcium carbonate are used in combination, more preferably, calcium sulfate is supplied by warworms, and calcium carbonate is supplied together with magnesium carbonate by dolomite.
  • the content of the calcium salt is 15 to 35% by weight, preferably 20 to 35% by weight based on the total amount of the purification agent.
  • the sodium salt is, for example, sodium carbonate.
  • a commercially available soda ash (dense; manufactured by Asahi Glass Co., Ltd.) is available as sodium carbonate.
  • the content of sodium salt is 10 to 30% by weight, preferably 15 to 30% by weight based on the total amount of the purification agent.
  • the purification treatment agent of the present invention preferably further contains a polymer. Inclusion of polymer increases floc.
  • a polymer a water-soluble polymer is used.
  • an anionic polymer having an anionic functional group, a cationic polymer having a cationic functional group, and a nonionic polymer having no ionic functional group are used. Can be classified.
  • the anionic polymer is effective when the pH of wastewater and sludge water to be treated (hereinafter referred to as “wastewater”) is particularly 3 to 14, preferably 7 to 14. Specific examples thereof include, for example, polyacrylamide type.
  • polyacrylamide series Commercial products of the polyacrylamide series include the Akofloc series (manufactured by Mitsui Cytec Co., Ltd.), the Senkafloc series (manufactured by Senniki Co., Ltd.), and the Aronsipolok series (manufactured by Toa Gosei Co., Ltd.) Available from Yo-Sumiflock series (Sumitomo Precision Chemical Co., Ltd.).
  • Cationic 1-biopolymer is particularly effective when the pH of wastewater is 1 to 7.
  • Specific examples thereof include poly (meth) acrylates, specially modified polyacrylamides, and polyamines.
  • Commercially available poly (meth) athenoleate estenole-based, specially modified polyacrylamide-based, and polyamine-based products are available in the same series as the above-mentioned polyacrylamide-based commercial products.
  • the nonionic polymer is particularly effective when the pH of the wastewater is 10 ⁇ 10.
  • Specific examples thereof include, for example, polyatarylamide and the like.
  • Polyacrylamide-based commercial products can be obtained from the same series as the above-mentioned polyacrylamide-based commercial products.
  • the content of the polymer is not particularly limited, and usually 2 to 5% by weight of the total amount of the purification treatment agent is suitable.
  • the purification treatment agent of the present invention can be prepared by mixing the above components with a mixer. For example, a predetermined amount of each of the above components together with a pigment ball (large, medium, and small beads) is put into a powder mixer such as a rocking mixer, a cement mixer, and the like, followed by stirring and mixing. Next, the upper, middle, and lower parts of the mixture were taken out in lkg each, and after uniformity of each component was confirmed by uniform dispersion of the color balls (beads), the pigment balls ( Beads).
  • a powder mixer such as a rocking mixer, a cement mixer, and the like
  • the purification treatment agent of the present invention For purification treatment of wastewater or the like, it is only necessary to put the purification treatment agent of the present invention into wastewater and turbulently agitate. This allows heavy metals to be adsorbed to the treating agent while flocculating suspended solids (pollutants) in the wastewater, resulting in precipitation and separation of the suspended suspended solids and heavy metals.
  • polluted substances coagulate and precipitate, and most of heavy metals and other harmful substances are adsorbed by the treatment agent and the coagulation occurs. It is taken into things.
  • the stirring is stopped, the formed aggregates (coagulated sludge) immediately begin to settle and separate. The supernatant water and the coagulated sludge are completely separated, and the interface becomes clear.
  • the sedimented and separated coagulated sludge has extremely high stability, does not collapse or dissolve even if it is stirred again, and rather tends to increase the sludge density. Also, there is no change with time, and the stability is high.
  • the sedimented and separated coagulated sludge is mainly composed of oxides and is granulated, so that the sludge has an extremely excellent dewatering property.
  • the addition amount of the purification treatment agent of the present invention depends on the concentration of pollutants such as wastewater and the type and concentration of an organic substance such as an aqueous coating contained in the wastewater (particularly, the SS concentration). especially in the range of 50PPM ⁇ 700PPM (700g from lm 3 per 50 g), it can achieve a cleansing process wastewater such interest.
  • the purification treatment agent of the present invention as described above can be used in various pollutant wastewater treatment methods.
  • Pollution wastewater treatment methods that can use the purification treatment agent of the present invention include, for example, physical treatment methods, physicochemical treatment methods, chemical treatment methods, and biological treatment methods.
  • the physical treatment method include a screen method, a sedimentation method, a flotation method, and a filtration method.
  • the physicochemical treatment method include various advanced treatment methods such as coagulation sedimentation method, pressure flotation method, activated carbon adsorption method, ion exchange method, reverse osmosis method, and electrodialysis method.
  • Examples of the chemical treatment include a pH adjustment method, a neutralization method, an oxidation method, and a reduction method.
  • the biological treatment method examples include an aerobic treatment method such as an activated sludge method, a biofilm method, and a ragged method, and an anaerobic treatment method.
  • the purification treatment agent of the present invention can be used also when treating by combining a plurality of these treatment methods. For example, coagulation sedimentation method for wastewater treatment with a lot of suspended solids, ion exchange method for suspended wastewater, anaerobic / aerobic activated sludge method for denitrification, ultrafiltration method for removing colloid particles, For removing aromatic compounds, it is particularly effective to apply the purification treatment agent of the present invention to an activated carbon adsorption method or the like. Furthermore, the purification treatment agent of the present invention can also be used for treating sludge generated in the treatment of wastewater as described above.
  • the number of times of cleaning the screen can be reduced by using the treating agent of the present invention prior to the treatment by the screen method which is a physical treatment method. Also, the life of activated carbon Life is extended and replacements are reduced.
  • the treating agent of the present invention acts as a natural inorganic ion exchange resin based on zeolite ion exchange ability and alumina amphoteric ion exchange ability.
  • the neutralization method / oxidation method / reduction method it is more effective if the treatment with the treating agent of the present invention is used in combination.
  • the anaerobic / aerobic activated sludge method for the purpose of denitrification if ammonia nitrogen is converted into ashiosan nitrogen, the treating agent of the present invention can remove nitrogen together with precipitated sludge. Further, when the aromatic compound is removed, if the emulsion is formed, it is possible to remove the aromatic compound by the treating agent of the present invention.
  • Examples of the wastewater to be treated by the purification agent for wastewater and sludge water according to the present invention as described above include, for example, coke production wastewater containing cyanide by-produced when coke is produced by carbonizing coal.
  • Mesh factory wastewater containing cyanide compounds used in the electroplating process, etc. fishnet factory wastewater containing tributyltin used as an antifouling agent for fishnets, and methylmercury used as catalyst mercury
  • Various wastewaters containing heavy metals and other harmful substances such as organic synthesis factory wastewater, semiconductor factory wastewater using chlorine compounds such as tetrachlorethylene and trichlorethylene as cleaning agents, and wastewater from cleaning plants.
  • the purifying agent of the present invention may also be used for the treatment of wastewater from an organic leather manufacturing plant containing organic substances such as chromium used in the tanning agent, and organic or inorganic wastewater from a textile plant. Can be done. Furthermore, synthetic resins such as alkyd resins, acrylic resins, and polyester resins, surfactants, kents such as acetone and methyl ethyl kent, and polyhydric alcohols such as xylol, toluene, and propylene glycol discharged from coating plants. It can also be used for the treatment of wastewater containing tools, ester compounds, amyl compounds and the like.
  • Dolomite manufactured by PT. PRIMAPACKIMIA REJEKI
  • Zeolite manufactured by PT. PRIMAPACKIMIA REJEKI
  • Polymer (Acofloc A95, manufactured by Mitsui Cytec Co., Ltd.) 2.0 parts by weight
  • Example 1 the aggregated precipitate obtained in Example 1 was mixed with 500 ml of water, and the mixture was stirred for 1 minute and then collected by filtration. The weight of the collected sediment was almost the same as the weight before mixing with water.
  • Example 2 the aggregated precipitate obtained in Example 2 was mixed with 500 ml of pure water, and the mixture was stirred for 1 minute and then filtered. Both the chromium and zinc contents in the filtrate were below the detection limit.
  • Chromium content (mg / 1) JIS K0102-65.1.4
  • Nickel and its compounds (mg / 1) JIS K0102-59.3

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)

Abstract

L'invention porte sur un agent de purification des eaux usées et des eaux boueuses capable, même lorsque la concentration des substances en suspension dans les eaux usées et dans les eaux boueuses est relativement élevée, d'effectuer une floculation (dépôt)/séparation satisfaisante des substances en suspension, des métaux lourds, etc., sans être influencé par la valeur du pH des eaux usées et des eaux boueuses. Lorsqu'on utilise l'agent de purification, il n'est pas nécessaire d'ajuster le pH au moment de l'évacuation de l'eau séparée, la teneur en eau du dépôt de floculation étant faible. La solubilité du dépôt de floculation dans l'eau est extrêmement faible, et notamment, les métaux lourds floculés ne sont pratiquement pas redissous dans l'eau. L'agent de purification des eaux usées et des eaux boueuses comprend un acide organique, un aluminosilicate cristallin, un sel d'aluminium, un sel de magnésium, un sel de calcium et un sel de sodium.
PCT/JP2003/014807 2002-11-21 2003-11-20 Agent de purification pour eaux usees et eaux boueuses Ceased WO2004045740A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004553217A JPWO2004045740A1 (ja) 2002-11-21 2003-11-20 廃水および汚泥水の浄化処理剤
AU2003302081A AU2003302081A1 (en) 2002-11-21 2003-11-20 Purification agent for wastewater and sludge water

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPPCT/JP02/12144 2002-11-21
PCT/JP2002/012144 WO2004046046A1 (fr) 2002-11-21 2002-11-21 Agents pour l'epuration des eaux usees et des eaux boueuses

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WO2004045740A1 true WO2004045740A1 (fr) 2004-06-03

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PCT/JP2003/014807 Ceased WO2004045740A1 (fr) 2002-11-21 2003-11-20 Agent de purification pour eaux usees et eaux boueuses

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WO (2) WO2004046046A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004305893A (ja) * 2003-04-07 2004-11-04 Junsuke Haruna 人工ゼオライトを使用した固体系排水処理剤
JP2009248006A (ja) * 2008-04-07 2009-10-29 Zeo Sorb:Kk 吸着・凝集方式の廃水処理剤
JP2013226510A (ja) * 2012-04-25 2013-11-07 Kurita Water Ind Ltd シアン含有排水の処理方法および処理剤
CN104370355A (zh) * 2014-10-24 2015-02-25 无锡伊佩克科技有限公司 一种高效污水处理剂
CN105621725A (zh) * 2014-11-03 2016-06-01 江苏巨达环保科技有限公司 重金属污酸废水处理系统

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CN104817123B (zh) * 2015-04-29 2016-09-14 浙江奇彩环境科技股份有限公司 一种从含锌废水中提取锌盐的工艺
CN108341565A (zh) * 2018-03-07 2018-07-31 李大川 一种城市污泥的清洁剂及其制备方法
CN108585437A (zh) * 2018-03-29 2018-09-28 昆明理工大学 一种处理污泥的方法
CN108996629A (zh) * 2018-08-31 2018-12-14 江苏祥豪实业股份有限公司 用于水体水质底质改良的单过硫酸氢钾复合泡腾片及其制备方法

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Publication number Priority date Publication date Assignee Title
JPS5092860A (fr) * 1973-12-19 1975-07-24
JP2774096B2 (ja) * 1996-10-11 1998-07-09 小松 達利 汚濁排水の浄化処理剤
JP2002126756A (ja) * 2000-10-31 2002-05-08 Suishou Yuka Kogyo Kk 廃液処理剤およびそれを用いた廃液処理方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092860A (fr) * 1973-12-19 1975-07-24
JP2774096B2 (ja) * 1996-10-11 1998-07-09 小松 達利 汚濁排水の浄化処理剤
JP2002126756A (ja) * 2000-10-31 2002-05-08 Suishou Yuka Kogyo Kk 廃液処理剤およびそれを用いた廃液処理方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004305893A (ja) * 2003-04-07 2004-11-04 Junsuke Haruna 人工ゼオライトを使用した固体系排水処理剤
JP2009248006A (ja) * 2008-04-07 2009-10-29 Zeo Sorb:Kk 吸着・凝集方式の廃水処理剤
JP2013226510A (ja) * 2012-04-25 2013-11-07 Kurita Water Ind Ltd シアン含有排水の処理方法および処理剤
CN104370355A (zh) * 2014-10-24 2015-02-25 无锡伊佩克科技有限公司 一种高效污水处理剂
CN105621725A (zh) * 2014-11-03 2016-06-01 江苏巨达环保科技有限公司 重金属污酸废水处理系统
CN105621725B (zh) * 2014-11-03 2018-08-17 江苏巨达环保科技有限公司 重金属污酸废水处理系统

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