RU2181383C1 - Method of reusing phenol-containing waste water - Google Patents
Method of reusing phenol-containing waste water Download PDFInfo
- Publication number
- RU2181383C1 RU2181383C1 RU2001119240/02A RU2001119240A RU2181383C1 RU 2181383 C1 RU2181383 C1 RU 2181383C1 RU 2001119240/02 A RU2001119240/02 A RU 2001119240/02A RU 2001119240 A RU2001119240 A RU 2001119240A RU 2181383 C1 RU2181383 C1 RU 2181383C1
- Authority
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- Russia
- Prior art keywords
- gas stream
- phenol
- waste water
- containing waste
- phenolic
- Prior art date
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 13
- 239000002351 wastewater Substances 0.000 title abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 19
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 8
- 150000002989 phenols Chemical class 0.000 claims abstract description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004571 lime Substances 0.000 claims abstract description 7
- 150000002825 nitriles Chemical class 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000013980 iron oxide Nutrition 0.000 claims abstract description 4
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003643 water by type Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 6
- 238000009628 steelmaking Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000000571 coke Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003567 thiocyanates Chemical class 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Description
Изобретение относится к металлургии, конкретнее к утилизации сточных вод металлургического производства. The invention relates to metallurgy, and more particularly to the disposal of wastewater from metallurgical production.
Известен способ утилизации фенольных вод, включающий их подачу на тушение коксового пирога в тушильной башне (Толочко А.И. и др. "Очистка технологических газов в черной металлургии". М., Металлургия, 1982 г., с. 207-208 - аналог). There is a method of recycling phenolic waters, including feeding them to extinguish a coke cake in a fire tower (Tolochko A.I. et al. "Purification of technological gases in the iron and steel industry." M., Metallurgy, 1982, pp. 207-208 - analogue )
Основным недостатком известного способа является низкая степень утилизации фенолов и их выброс в окружающую атмосферу. The main disadvantage of this method is the low degree of utilization of phenols and their release into the surrounding atmosphere.
Известен также способ утилизации фенольных вод, включающий подачу фенольных вод в поток отходящих газов от сталеплавильных агрегатов, температура которых равна 700-1600oС, причем одновременно в поток газов подают кислород с расходом 5-40 м3/т фенольной воды. Возможна также подача смеси фенольной воды с технической оборотной водой в соотношении от 15:1 до 1:10 (авторское свидетельство СССР 1688587, кл. С21С 5/38, 1989 г. - прототип). Известный способ (прототип) позволит увеличить степень утилизации и уменьшить выброс фенолов в атмосферу.There is also known a method of utilization of phenolic waters, including supplying phenolic waters to the exhaust gas stream from steelmaking units, the temperature of which is 700-1600 o C, and at the same time oxygen is supplied to the gas stream with a flow rate of 5-40 m 3 / t of phenolic water. It is also possible to supply a mixture of phenolic water with technical recycled water in a ratio of 15: 1 to 1:10 (USSR author's certificate 1688587, class C21C 5/38, 1989 - prototype). The known method (prototype) will increase the degree of utilization and reduce the release of phenols into the atmosphere.
Однако основным недостатком известного способа является недостаточно высокая степень очистки фенольных вод и загрязнение окружающей среды (атмосферы и водоемов). However, the main disadvantage of this method is the insufficiently high degree of purification of phenolic waters and environmental pollution (atmosphere and water bodies).
Технический результат изобретения заключается в повышении степени очистки фенольных вод и улучшении экологической обстановки окружающей среды. The technical result of the invention is to increase the degree of purification of phenolic waters and improve the ecological environment.
Технический результат достигается тем, что в способе утилизации фенольных вод, включающем подачу фенольных вод в поток отходящих газов сталеплавильных агрегатов, обогащенных кислородом, согласно изобретению в качестве фенольных вод используют концентрированную аммиачную воду с содержанием фенолов до 3000 мг/л и цианидов до 1000 мг/л, а в поток отходящих газов вводят катализатор, при этом кислород подают в поток отходящих газов в количестве 50-100 м3/т аммиачной воды.The technical result is achieved by the fact that in the method for utilization of phenolic waters, including supplying phenolic waters to the exhaust gas stream of oxygen-enriched steelmaking units, concentrated ammonia water with phenols up to 3000 mg / l and cyanides up to 1000 mg / is used as phenolic waters l, and a catalyst is introduced into the exhaust gas stream, while oxygen is fed into the exhaust gas stream in an amount of 50-100 m 3 / t of ammonia water.
Кроме того, в качестве катализатора используют порошок извести в количестве 10-100 г/м3 отходящих газов.In addition, as a catalyst, lime powder is used in an amount of 10-100 g / m 3 of exhaust gases.
Кроме того, в качестве катализатора используют смесь порошка извести и окислов железа в соотношении (1:10)÷(1:1). In addition, a mixture of lime powder and iron oxides in the ratio (1:10) ÷ (1: 1) is used as a catalyst.
Пример осуществления способа
В коксохимическом производстве отбирают концентрированные аммиачные сточные воды с содержанием фенолов 1500 мг/л и цианидов 600 мг/л и, минуя биохимочистку, транспортируют в сталеплавильные печи, где их впрыскивают в поток отходящих газов, температура которых составляет примерно 1650oC. Одновременно отходящие газы обогащают кислородом, расход которого составляет 70 м3/т аммиачной воды, и вводят катализатор в виде порошка извести или смеси порошка извести и окислов железа в соотношении 1:5 и с расходом 30 г/м3 газов, при этом количество подаваемых концентрированных аммиачных вод составляет 40 м3/час. Аммиачные воды испаряются, а продукты разложения и окисления содержащихся в них фенолов, цианидов и других веществ доводятся до простейших газов СО2, Н2O и N2 и выводятся через трубу в атмосферу. Содержание остаточных примесей вредных веществ в отходящих газах доводится до предельно-допустимых концентраций.An example of the method
In the coke production, concentrated ammonia wastewater with a phenol content of 1500 mg / l and cyanide 600 mg / l is taken and, bypassing biochemical treatment, transported to steelmaking furnaces, where they are injected into the exhaust gas stream, the temperature of which is about 1650 o C. At the same time, the off-gas enriched oxygen consumption which is 70 m 3 / t of ammonia water, and the catalyst is introduced in the form of powder, lime or mixtures of lime powder and iron oxides in a ratio of 1: 5 and at a rate of 30 g / m 3 gas, and the amount they gave of concentrated ammonia water is 40 m 3 / hour. Ammonia water evaporates, and the products of decomposition and oxidation of phenols, cyanides and other substances contained in them are brought to the simplest gases CO 2 , H 2 O and N 2 and are discharged through the pipe into the atmosphere. The content of residual impurities of harmful substances in the exhaust gases is brought to the maximum permissible concentrations.
Использование предлагаемого способа утилизации фенольных вод позволяет снизить концентрацию вредных веществ в сточных водах, а именно фенолов от 3000 мг/л до 0,0001 г/м3, газов и цианидов от 1000 мг/л до 0,0001 г/м3, уменьшить сброс фенольной воды на биохимочистку до 80% и существенно снизить капитальные и текущие затраты на утилизацию сточных вод коксохимического производства.Using the proposed method for the utilization of phenolic water can reduce the concentration of harmful substances in wastewater, namely phenols from 3000 mg / l to 0.0001 g / m 3 , gases and cyanides from 1000 mg / l to 0.0001 g / m 3 discharging phenolic water for biochemical treatment up to 80% and significantly reduce capital and current costs for the disposal of wastewater from coke production.
Предлагаемый способ позволяет предотвратить загрязнение водоемов и атмосферы фенолами, цианидами, роданидами, окислами азота, что существенно позволяет улучшить экологическую обстановку окружающей среды. The proposed method allows to prevent pollution of water bodies and the atmosphere with phenols, cyanides, thiocyanates, nitrogen oxides, which significantly improves the ecological environment.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2001119240/02A RU2181383C1 (en) | 2001-07-12 | 2001-07-12 | Method of reusing phenol-containing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2001119240/02A RU2181383C1 (en) | 2001-07-12 | 2001-07-12 | Method of reusing phenol-containing waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2181383C1 true RU2181383C1 (en) | 2002-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2001119240/02A RU2181383C1 (en) | 2001-07-12 | 2001-07-12 | Method of reusing phenol-containing waste water |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2181383C1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0055004A1 (en) * | 1980-12-18 | 1982-06-30 | PELT & HOOYKAAS B.V. | Process for processing moist compositions containing pollution-causing substances and composition |
| US5065985A (en) * | 1987-11-30 | 1991-11-19 | Nkk Corporation | Method for smelting reduction of iron ore and apparatus therefor |
| RU2000334C1 (en) * | 1991-12-23 | 1993-09-07 | Виталий Васильевич Кротков | Method for purifying of waste gases from melting units |
| SU1688587A1 (en) * | 1989-07-24 | 1997-01-20 | Череповецкий Металлургический Комбинат Им.50-Летия Ссср | Method of utilization of phenol water |
-
2001
- 2001-07-12 RU RU2001119240/02A patent/RU2181383C1/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0055004A1 (en) * | 1980-12-18 | 1982-06-30 | PELT & HOOYKAAS B.V. | Process for processing moist compositions containing pollution-causing substances and composition |
| US5065985A (en) * | 1987-11-30 | 1991-11-19 | Nkk Corporation | Method for smelting reduction of iron ore and apparatus therefor |
| SU1688587A1 (en) * | 1989-07-24 | 1997-01-20 | Череповецкий Металлургический Комбинат Им.50-Летия Ссср | Method of utilization of phenol water |
| RU2000334C1 (en) * | 1991-12-23 | 1993-09-07 | Виталий Васильевич Кротков | Method for purifying of waste gases from melting units |
Non-Patent Citations (1)
| Title |
|---|
| ТОЛОЧКО А.И. и др. Очистка технологических газов в черной металлургии. - М.: Металлургия, 1982, с. 207-208. * |
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