SU941309A1 - Method of purifying waste water from arsenic - Google Patents

Method of purifying waste water from arsenic Download PDF

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Publication number
SU941309A1
SU941309A1 SU803008113A SU3008113A SU941309A1 SU 941309 A1 SU941309 A1 SU 941309A1 SU 803008113 A SU803008113 A SU 803008113A SU 3008113 A SU3008113 A SU 3008113A SU 941309 A1 SU941309 A1 SU 941309A1
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USSR - Soviet Union
Prior art keywords
waste water
mouse
pyrolusite
arsenic
water
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SU803008113A
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Russian (ru)
Inventor
Валерий Леонидович Кузнецов
Юрий Васильевич Нестеров
Александр Трофимович Пристанский
Александр Петрович Денисенко
Елена Ивановна Чумак
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Предприятие П/Я В-8948
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Priority to SU803008113A priority Critical patent/SU941309A1/en
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Publication of SU941309A1 publication Critical patent/SU941309A1/en

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Description

(54) СПОСОБ ОЧИСТКИ СТОЧНЫХ ВОД ОТ МЫШЬЯКА(54) METHOD FOR CLEANING WASTEWATER FROM ARZYAK

Изобретение относитс  к очистке сточных вод и может быть использовано в отрасл х промышленности, где в технологических процессах примен ют соединени  мышь ка. Известен известковый метод очистки сточн вод от мышь ка, который основан на спосо ности кислородсодержащих анионов мышь ка с гашеной известью образовывать осадки солей 1 . Недостатком способа  вл етс  значительна  растворимость этих соединений, поэтому необходима дополнительна  обработка. Наиболее близким к предлагаемому по тех нической сушности и достигаемому результату  вл етс  способ очистки сточных вод от мышь ка обработкой природным пиролюзитом 12. Недостатком известного способа  вл етс  то, что по истечении некоторого времени в растворе по вл ютс  ионы мышь ка и марганца . Кроме того, со временем снижаетс  окислительна  способность двуокиси марганца Цель изобретени  - повышение степени очистки от мышь ка и уменьшение вторичного загр знени  воды марганцем. Поставленна  цель достигаетс  тем, что согласно способу очистки сточных вод от мышь ка обработкой природным шфоли)зитом, последний предварительно подвергают термообработке при 200-300 С, в течение 0,5-1,0 ч. П р и м е р. Берут 5 проб по 1 л шахтнрй воды с содержанием мышь ка 0,17 мг/л, марганца 0,08 мг/л,.рН 6,5. В каждую пробу добавл ют 5 г природного пиролюзита, но в пробы 2-5 добавл ют пиролюзит, прошедший термическую обработку механической мешалкой в течение времени, достаточного дл  устг новлени  ионного равновеси . Затем жидкую фазу отдел ют и анализируют на содержание мь шь ка и марганца. Полученные результаты представлены в таблице.The invention relates to wastewater treatment and can be used in industries that use mouse compounds in technological processes. The limestone method of cleaning waste water from arsenic is known, which is based on the ability of oxygen-containing anions of arsenic with hydrated lime to form salt deposits 1. The disadvantage of the method is the significant solubility of these compounds, therefore additional processing is necessary. The closest to the proposed technical dryness and the achieved result is a method of cleaning waste water from a mouse by treatment with natural pyrolusite 12. A disadvantage of the known method is that after some time, arsenic and manganese ions appear in the solution. In addition, the oxidative capacity of manganese dioxide decreases with time. The purpose of the invention is to increase the degree of purification from arsenic and reduce secondary contamination of water with manganese. This goal is achieved by the fact that, according to the method of sewage water purification from the mouse, by treatment with natural shells, the latter is previously subjected to heat treatment at 200–300 ° C for 0.5–1.0 hours. Take 5 samples of 1 liter of miner water with a mouse content of 0.17 mg / l, manganese, 0.08 mg / l, .pH 6.5. To each sample, 5 g of natural pyrolusite is added, but in samples 2–5, pyrolusite is added, which has been heat-treated with a mechanical stirrer for a time sufficient to establish ionic equilibrium. Then the liquid phase is separated and analyzed for the content of meat and manganese. The results obtained are presented in the table.

Из представленных данных видно, что использование предложенного способа ошстки сточных вод (СВ) от мышь ка обеспещген: ет в сравнении с известным увеличение степени ОШСТКИ СВ от мышь ка в 2,6 раза, достигаетс  уровень очистки СВ от мышь ка, который соответствует ГОСТ 4152-72 Питьева  вода. Кроме того, уменьшаетс  степень вторишого загр знени  очищаемой воды марганцем и имеетс  возможность сокращени  расхода пиролюзита дл  достижеш1  одинакового уровн  оадстки СВ.From the presented data it can be seen that the use of the proposed method of waste water flaws (CB) from the mouse is ensured by: 60% of the level of the OSH of the mouse from the mouse by 2.6 times, the level of CB cleaning from the mouse, which corresponds to GOST 4152, is achieved. -72 Drinking water. In addition, the degree of secondary contamination of the water to be purified is reduced by manganese, and it is possible to reduce the consumption of pyrolusite to achieve an equal level of CB.

Claims (2)

1. Способ очистки сточных вод от мышь ка обработкой природным пиролюзитом, о тл и ч а ю щ и н с   тем, что, с целью повышени  степени очистки и уменьшени  вторичного загр знени  воды марганцем, пиролюзит предварительно подвергают термической обработке при 200-300° С.1. A method of cleaning waste water from a mouse by treatment with natural pyrolusite, o t and h and y and n so that, in order to increase the degree of purification and reduce secondary contamination of water with manganese, pyrolusite is previously subjected to heat treatment at 200-300 ° WITH. 2. Способ по п. I, о т л и ч а ю щ и йс   тем, что термообработку ведут в течение 0,5-1,0 ч.2. The method according to p. I, about t of l and h and y and ic with the fact that heat treatment is carried out for 0.5-1.0 hours Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination 1.Ахмадеев В. Я., Савина Н. В. Физикохимические методы очистки сточных вод от мышь ка и извлечение редких и рассе нных металлов из растворов. ЦНИИ Электроника М., 1974, с. 3.1.Akhmadeev V.Ya., Savina N.V. Physicochemical methods for cleaning mouse waste water and extracting rare and dispersed metals from solutions. Central Research Institute of Electronics M., 1974, p. 3 2.Григорьев Ю. О. и др. Применение природного жиролюзита дл  окислени  мышь ка в промьшиенных сточных водах. Извести  Сибирского отделени  АН СССР, 1977, N 12, вып. 5, с. 46-49 (прототип).2. Grigoriev Yu.O., et al. Use of natural fatty lusolite for oxidation of arsenal in industrial wastewater. Lime Siberian Branch of the Academy of Sciences of the USSR, 1977, N 12, no. 5, s. 46-49 (prototype).
SU803008113A 1980-11-26 1980-11-26 Method of purifying waste water from arsenic SU941309A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0646934A1 (en) * 1991-05-16 1995-04-05 Jci Limited A method of treating water containing radioactive constituents
EP1338569A1 (en) * 2002-02-22 2003-08-27 BWT Wassertechnik GmbH Water treatment by catalytic filtration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0646934A1 (en) * 1991-05-16 1995-04-05 Jci Limited A method of treating water containing radioactive constituents
EP1338569A1 (en) * 2002-02-22 2003-08-27 BWT Wassertechnik GmbH Water treatment by catalytic filtration
WO2003070647A1 (en) * 2002-02-22 2003-08-28 Bwt Wassertechnik Gmbh Method for treating water

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