SU1673531A1 - Method of cleaning sewage from phosphates and fluorides - Google Patents
Method of cleaning sewage from phosphates and fluorides Download PDFInfo
- Publication number
- SU1673531A1 SU1673531A1 SU894674539A SU4674539A SU1673531A1 SU 1673531 A1 SU1673531 A1 SU 1673531A1 SU 894674539 A SU894674539 A SU 894674539A SU 4674539 A SU4674539 A SU 4674539A SU 1673531 A1 SU1673531 A1 SU 1673531A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- fluorides
- reagent
- phosphates
- water
- minutes
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 229910019142 PO4 Inorganic materials 0.000 title claims abstract description 6
- 150000002222 fluorine compounds Chemical class 0.000 title claims abstract description 6
- 235000021317 phosphate Nutrition 0.000 title claims description 5
- 150000003013 phosphoric acid derivatives Chemical class 0.000 title claims description 5
- 238000004140 cleaning Methods 0.000 title 1
- 239000010865 sewage Substances 0.000 title 1
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000746 purification Methods 0.000 claims abstract description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
Изобретение относитс к области обработки воды, может быть использовано при очистке сточных вод металлургической, химической и других отраслей промышленности и позвол ет повысить степень очистки и снизить расход реагента. В обрабатываемую воду ввод т предварительно приготовленную смесь известкового молока и магнетита при массовом соотношении компонентов (4 - 2) : 1, перемешивают в течение 2 мин, отстаивают в течение 30 мин, после чего осветленный слой отдел ют. Реагент ввод т в количестве 1,5 - 2,5 г/л. Способ позвол ет получить остаточную концентрацию фосфатов 0,25 - 0,35 мг/л (P2O5), фторидов 0,82 - 1,56 мг/л (F-). 1 з.п. ф-лы, 4 табл.The invention relates to the field of water treatment, can be used in wastewater treatment of metallurgical, chemical and other industries and allows you to increase the degree of purification and reduce reagent consumption. A pre-cooked mixture of milk of lime and magnetite is introduced into the water being treated with a mass ratio of components (4-2): 1, stirred for 2 minutes, settled for 30 minutes, after which the clarified layer is separated. The reagent is introduced in the amount of 1.5 - 2.5 g / l. The method allows to obtain a residual phosphate concentration of 0.25 - 0.35 mg / l (P 2 O 5 ), fluorides 0.82 - 1.56 mg / l (F - ). 1 hp f-ly, 4 tab.
Description
Изобретение относитс к обработке воды и может быть использовано при очистке сточных вод в металлургической, химической и других отрасл х промышленности.The invention relates to the treatment of water and can be used in wastewater treatment in the metallurgical, chemical and other sectors of the industry.
Цель изобретени - повышение степени очистки и снижение расхода реагента.The purpose of the invention is to increase the degree of purification and reduce the consumption of reagent.
Дл осуществлени способа в обрабатываемую воду ввод т предварительно приготовленную смесь известкового молока и магнетита при массовом соотношении компонентов 4-2:1. перемешивают, отстаивают и отдел ют осветленный слой. Реагент ввод т в количестве 1,5-2,5 г/л.To carry out the process, a previously prepared mixture of milk of lime and magnetite is introduced into the water being treated with a mass ratio of components of 4-2: 1. mix, stand, and separate the clarified layer. The reagent is introduced in the amount of 1.5-2.5 g / l.
П р и м е р. В сточные воды, содержащие фосфаты в количестве 300 мг/л (PaOs) и фториды 1000 мг/л (F), ввод т предварительно приготовленную смесь известкового молока и магнетита при массовом соотношении компонентов 3:1 в количестве 2 г/л. Перемешивают в течение 2 мин. После 30-минутного отстаивани определ ют содержание загр зн ющих компонентов в очищеннойPRI me R. In the wastewater containing phosphates in an amount of 300 mg / l (PaOs) and fluorides 1000 mg / l (F), a pre-prepared mixture of milk of lime and magnetite is introduced at a mass ratio of 3: 1 in an amount of 2 g / l. Stir for 2 minutes. After 30 minutes of settling, the content of the contaminating components in the purified
воде, мг/л: фосфаты (Р20б) 0,25, фториды (F ) 0,54; кальций 16,8, ионы железа отсутствуютwater, mg / l: phosphates (Р20b) 0.25, fluorides (F) 0.54; calcium 16.8, no iron ions
В табл. 1 и 2 представлены результаты по эффективности процесса обработки воды в зависимости от величины соотношени компонентов смеси известкового молока и магнетита (табл. 1) и количества вводимой смеси (табл. 2).In tab. Figures 1 and 2 present the results on the efficiency of the water treatment process, depending on the ratio of the components of the mixture of milk of lime and magnetite (Table 1) and the amount of the mixture injected (Table 2).
В табл. 3 представлены данные по высоте осветленного сло обработанной воды в зависимости от соотношени компонентов вводимой смеси и времени отсто . Высота столба жидкости 100 см. Количество введенного реагента 2 г/л.In tab. Figure 3 presents data on the height of the clarified layer of treated water, depending on the ratio of the components of the injected mixture and the time of sludge. The height of the liquid column is 100 cm. The amount of reagent introduced is 2 g / l.
В табл. 4 представлены сравнительные данные по расходу реагента дл известного и предлагаемого способов.In tab. 4 shows comparative data on the consumption of the reagent for the known and proposed methods.
Предлагаемый способ позвол ет повысить степень очистки от фосфатов в 6-8,5 раз, от фторидов в 2-6 раз, снизить расход реагентов и увеличить относительный объемThe proposed method allows to increase the degree of purification from phosphates by 6-8.5 times, from fluorides by 2-6 times, reduce the consumption of reagents and increase the relative volume
СОWITH
СWITH
оabout
ел соate with
осветленного сло в процессе отстаивани воды.clarified layer in the process of settling water.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894674539A SU1673531A1 (en) | 1989-04-05 | 1989-04-05 | Method of cleaning sewage from phosphates and fluorides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894674539A SU1673531A1 (en) | 1989-04-05 | 1989-04-05 | Method of cleaning sewage from phosphates and fluorides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1673531A1 true SU1673531A1 (en) | 1991-08-30 |
Family
ID=21439778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894674539A SU1673531A1 (en) | 1989-04-05 | 1989-04-05 | Method of cleaning sewage from phosphates and fluorides |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1673531A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2528999C1 (en) * | 2013-02-28 | 2014-09-20 | Леонид Асхатович Мазитов | Method of purifying natural or waste water from fluorine and/or phosphates |
-
1989
- 1989-04-05 SU SU894674539A patent/SU1673531A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР N 950684, кл. С 02 F 1/58. 1980. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2528999C1 (en) * | 2013-02-28 | 2014-09-20 | Леонид Асхатович Мазитов | Method of purifying natural or waste water from fluorine and/or phosphates |
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