SU785232A1 - Method of thickening waste water precipitate - Google Patents
Method of thickening waste water precipitate Download PDFInfo
- Publication number
- SU785232A1 SU785232A1 SU731922281A SU1922281A SU785232A1 SU 785232 A1 SU785232 A1 SU 785232A1 SU 731922281 A SU731922281 A SU 731922281A SU 1922281 A SU1922281 A SU 1922281A SU 785232 A1 SU785232 A1 SU 785232A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sludge
- precipitate
- waste water
- flotation
- bicarbonate
- Prior art date
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Fertilizers (AREA)
Description
Й вследствие того, что плотность газона попнешюго осадка становитс меньше плотности воды, он всплывает на поверхЕость жидкости. Затем его удал ют, обеэ &оживают и используют в качестве удобренин . .,..Th due to the fact that the density of the lawn of the sediment becomes less than the density of water, it floats on the surface of the liquid. It is then removed, both ee & alive, and used as fertilizer. ...
П р и м е р 1, к 5ОО мл осадка сточных вод станции биологической очистки с влажностью 98% ввод т 4 г бикарбоната аммони . Смесь нагревшот в течение Тмив до . При этом выделившиес флотгаз раздел ют осадок на жидкую фазу и всплышую твердую фазу. Влажность всплывшей твердой фазы составл ет 20%. Таким образом осадок сРущакут: в 4,В рааа,Example 1, to 5OO ml of sewage sludge from a biological treatment plant with a humidity of 98%, 4 g of ammonium bicarbonate are introduced. The mixture is heated for Tmiv to. At the same time, the separated flotation gas separates the precipitate into a liquid phase and a precipitated solid phase. The moisture content of the solid solids is 20%. Thus, the precipitate is: 4, B raaa,
П р и м е р 2i В емкость 20О мл насьгаают 1 г бикарбоната аммони (или карбоната аммони ) и ввод т 100 мл осадка сточных вод целлюлозного завода (из ловушки.волокна) с влажностью 96%. Дно емкости нагревают в течение 6,5 мин до , При этом осадок разделилс на жвдкую фазу и всплывший слой осадка. Влажность всплывшего осадка составл ет 65%. После отделени осадка,, как в примере 1, в нем аналитическимметодом определ ют наличие азота. Вы влено, гго при введен1Ш бикарбоната или карбоната аммони в количестве 30-35 кг на ЮОО кг cj-xoro осадка получают из сточluis вод аммонизированное удобрение, которое можно использовать в сельскомEXAMPLE 2 1 ml of ammonium bicarbonate (or ammonium carbonate) is poured into a container of 20 ml, and 100 ml of sewage sludge from a pulp plant with a moisture content of 96% is injected. The bottom of the vessel is heated for 6.5 minutes until the precipitate is separated into a liquid phase and a supernatant of sediment. The moisture content of the floating precipitate is 65%. After separation of the precipitate, as in Example 1, the presence of nitrogen is determined by an analytical method. It has been found that when bicarbonate or ammonium carbonate is injected in an amount of 30-35 kg per 10,000 kg of cj-xoro sediment an ammoniated fertilizer is obtained from the stoichluis water, which can be used in agriculture
785232785232
хоа 1ах;тве. При вьпие и ниже указанных значени х количества вводимых солей осадок получают недостаточно аммонизированным .hoa lah; twe. When the amount of the injected salts is higher and lower than the indicated values, the precipitate is not sufficiently ammoniated.
Предложенный способ в сравнении с известными позвол ет утилизировать сгущенный осадок в качестве удобрени . Оа экономичен, пбскольку не требует ком1фессионноГо оборудовани дл флотации.The proposed method, in comparison with the known ones, makes it possible to dispose of the condensed sediment as fertilizer. It is economical, since it does not require professional flotation equipment.
ФЬрМула|изобретени Frmula | invention
1.Способ сгушени осадка сточных вод путем его флотации, отличающ и и с тем, что, с целью возможности утилизации сгущенного осадка в качестве удобрени флотацию осуществл ют путем введени в осадок бикарбоната или карбоната аммони и полученную смесь подогревают до вьщелени .пузырьков газа.1. A method of drying sewage sludge by flotation, which is also distinguished by the fact that, in order to utilize the condensed sludge as a fertilizer, flotation is carried out by introducing bicarbonate or ammonium carbonate into the sediment and the resulting mixture is heated until the gas bubble is added.
2.Способ но п. 1, о т л и ч а ю щ и и с тем; что бикарбонат или карбонат аммони ввод т в осадок в количесгв§ 30-35 кг на ЮОО кг сухого осадка2. Method no. 1, on tl and h a y i and so; that ammonium bicarbonate or carbonate is introduced into the sediment in a quantity of 30-35 kg per kg of dry precipitate
Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination
l.HieB-fS M.R. Ст. в журнале ТегреS et еких, 1970, 23, № 64, с. 40. 2 . Справочник фирмы Дегреман Mementl.HieB-fS M.R. Art. in Tegre et al., 1970, 23, No. 64, p. 40. 2. Degreman Mement Company Directory
1есЬпЦие de Beau, Париж, 1972, с. 421-4kl3 прототип).1 de Beau, Paris, 1972, p. 421-4kl3 prototype).
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU731922281A SU785232A1 (en) | 1973-05-11 | 1973-05-11 | Method of thickening waste water precipitate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU731922281A SU785232A1 (en) | 1973-05-11 | 1973-05-11 | Method of thickening waste water precipitate |
Publications (1)
Publication Number | Publication Date |
---|---|
SU785232A1 true SU785232A1 (en) | 1980-12-07 |
Family
ID=20553715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU731922281A SU785232A1 (en) | 1973-05-11 | 1973-05-11 | Method of thickening waste water precipitate |
Country Status (1)
Country | Link |
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SU (1) | SU785232A1 (en) |
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1973
- 1973-05-11 SU SU731922281A patent/SU785232A1/en active
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