SU268285A1 - METHOD OF WASTEWATER TREATMENT - Google Patents
METHOD OF WASTEWATER TREATMENTInfo
- Publication number
- SU268285A1 SU268285A1 SU1260157A SU1260157A SU268285A1 SU 268285 A1 SU268285 A1 SU 268285A1 SU 1260157 A SU1260157 A SU 1260157A SU 1260157 A SU1260157 A SU 1260157A SU 268285 A1 SU268285 A1 SU 268285A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- wastewater treatment
- calcium
- treatment
- wastewater
- sulphides
- Prior art date
Links
- 238000004065 wastewater treatment Methods 0.000 title description 5
- 150000003568 thioethers Chemical class 0.000 description 7
- 150000001412 amines Chemical class 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L Iron(II) sulfate Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L cacl2 Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 239000011790 ferrous sulphate Substances 0.000 description 3
- 235000003891 ferrous sulphate Nutrition 0.000 description 3
- 239000010665 pine oil Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N Oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000004907 Glands Anatomy 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 150000001669 calcium Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000010685 fatty oil Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Description
Изобретение относитс к области очистки сбросных стоков, содержащих сульфиды, амины , сосновое масло и жирные кислоты, например , на обогатительных фабриках. Известный способ очистки сточных вод от сульфидов заключаетс в обработке очищаемых стоков раствором железного купороса и кальцийсодержащим реагентом. Этот способ невозможно .применить дл очистки стоков обогатительных фабрик, содержащих, нар ду 10 с сульфидами, амины, жирные кислоты, различные масла. Кроме того, он имеет невысокую степень очистки от сульфидов, всего 55%. По предложенному способу в качестве кальцийсодержащего реагента примен ют хлори- is стый кальций. Совместное применение железного купороса и хлористого кальци дл очистки сточных вод обеспечивает практически полную очистку последних от сульфидов, а также высокую степень очистки от аминов 20 (остаточное содержание их 0,05 мг/л), соснового масла (остаточное содержание 1,5- 2 мг/л), олеиновой кислоты (остаточное содержание 3-4 мг/л). Пример. В очищаемую воду с рН 9, со- 25 держащую сульфиды, амины, сосновое масло, жирные кислоты, машинное масло, ввод т при перемещивании 0,4-0,5 кг FeS04-7H2O и 2,5 кг СаСЬ на 1 м очищаемой воды. Комбинаци вводимых реагентов позвол ет исполь- ЗО Таблица 1 Содержание сульфидов, (исходный раствор) FeSO4+Ca(OH), . , FeSOi+CaCb . . зовать их как буферные растворы дл поддержани установленного оптимального уровн рН среды (6,5-7,0). В этих услови х лучше всего идет процесс глубокой очистки стоков . После введени железного купороса и хлористого кальци в виде 10%-ных водных растворов (врем контактировани 10- 20 мин) стоки подвергают отстаиванию в течение 4-5 суток. Таблица 2 Химический состав, мг1л 3 В табл. 1 приведена сравнительна характеристика очистки стоков от сульфидов по известному и иредлслоенному способам. В табл. 2 приведен результат очистки сточных вод по предложенному способу. , -, ИредметизооретеНИ Способ очистки сточных вод, например, обогатительных фабрик от сульфидов путем об4 работки очищаемых стоков раствором желез„ого купороса и кальцийсодержащим реаген« ™ « «««« «c тем, что, с целью одновре ie 04 очистки стоков от аминов, жирных кислот и масел, о качестве кальцийсодерлса„ щего реагента примен ют хлористый кальц й The invention relates to the treatment of waste effluents containing sulphides, amines, pine oil and fatty acids, for example, at beneficiation plants. A known method of sulphide wastewater treatment is to treat the effluent being treated with a solution of ferrous sulfate and a calcium-containing reagent. This method cannot be used to clean the effluents of the processing plants containing, along with 10 with sulfides, amines, fatty acids, various oils. In addition, it has a low degree of purification from sulphides, only 55%. According to the proposed method, chlorinated calcium is used as a calcium-containing reagent. Combined use of ferrous sulfate and calcium chloride for wastewater treatment provides almost complete purification of the latter from sulphides, as well as a high degree of purification from amines 20 (their residual content is 0.05 mg / l), pine oil (residual content of 1.5-2 mg / l), oleic acid (residual content of 3-4 mg / l). Example. Purified water with a pH of 9, containing 25 sulphides, amines, pine oil, fatty acids, machine oil, is injected with moving 0.4-0.5 kg of FeS04-7H2O and 2.5 kg of CaCI per 1 m of water to be purified. . The combination of the injected reagents allows the use of the following: Table 1 Sulfide content, (initial solution) FeSO4 + Ca (OH),. , FeSOi + CaCb. . call them as buffer solutions to maintain the optimal pH level of the medium (6.5-7.0). Under these conditions, the process of deep sewage treatment is best. After the introduction of ferrous sulfate and calcium chloride in the form of 10% aqueous solutions (contact time 10-20 minutes), the drains are allowed to settle for 4-5 days. Table 2 Chemical composition, mgl 3 Tab. 1 shows a comparative description of the treatment of wastewater from sulphides by the known and de-stratified methods. In tab. 2 shows the result of wastewater treatment by the proposed method. , -, IredmetozoreteNI Method of wastewater treatment, for example, of sulphide enrichment plants by treatment of treated wastewater with a solution of vitriol glands and calcium-containing reagent “™“ ““ ““ “c” so that, with the aim of simultaneously 04 wastewater purification from amines , fatty acids and oils, Calcium chloride is used as calcium reagent.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU268285A1 true SU268285A1 (en) |
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