RU97106937A - METHOD FOR PROCESSING PRODUCTS OF BIOCHEMICAL OXIDATION OF SULPHITE ALKALI - Google Patents

METHOD FOR PROCESSING PRODUCTS OF BIOCHEMICAL OXIDATION OF SULPHITE ALKALI

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Publication number
RU97106937A
RU97106937A RU97106937/13A RU97106937A RU97106937A RU 97106937 A RU97106937 A RU 97106937A RU 97106937/13 A RU97106937/13 A RU 97106937/13A RU 97106937 A RU97106937 A RU 97106937A RU 97106937 A RU97106937 A RU 97106937A
Authority
RU
Russia
Prior art keywords
ozone
biochemical oxidation
biochemical
heated
processing products
Prior art date
Application number
RU97106937/13A
Other languages
Russian (ru)
Other versions
RU2113422C1 (en
Inventor
А.Б. Бузулеев
С.Г. Гончаров
В.В. Парфенов
А.А. Щупляк
О.А. Гладков
В.А. Риц
А.В. Дремов
В.И. Юрьева
Original Assignee
Закрытое акционерное общество "БИО Консалтинг"
Закрытое акционерное общество "РЭП Водоканал"
Filing date
Publication date
Application filed by Закрытое акционерное общество "БИО Консалтинг", Закрытое акционерное общество "РЭП Водоканал" filed Critical Закрытое акционерное общество "БИО Консалтинг"
Priority to RU97106937/13A priority Critical patent/RU2113422C1/en
Priority claimed from RU97106937/13A external-priority patent/RU2113422C1/en
Application granted granted Critical
Publication of RU2113422C1 publication Critical patent/RU2113422C1/en
Publication of RU97106937A publication Critical patent/RU97106937A/en

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Claims (1)

Способ переработки продукта биохимического окисления сульфитных щелоков, содержащего лигносульфонаты, включающий упаривание, смешивание со щелочным реагентом, обработку продукта озоно-воздушной смесью, выдерживание при подаче воздуха под давлением при повышенной температуре и охлаждение, отличающийся тем, что упаренные продукты биохимической переработки сульфитных щелоков нагревают до 40 - 120oC, добавляют щелочной реагент до достижения рН 6 - 9, проводят озонирование при концентрации озона, 1,0 - 10,0 мг/дм3, затем дополнительно вводят щелочь в количестве 30 - 40% от массы органических веществ, подогревают полученную смесь до 170 - 190oC, барботируют воздух под давлением 2,5 - 3,0 МПа с удельным расходом 50 - 65 нм3/м3-ч в течение 0,5 - 2,0 ч при рН 6,0 - 9,0, после чего полученную смесь охлаждают и повторно озонируют до суммарной дозы озона 1 - 2% от массы органических веществ бражки.A method of processing a product of biochemical oxidation of sulfite liquors containing lignosulfonates, including evaporation, mixing with an alkaline reagent, treating the product with an ozone-air mixture, keeping it under pressure at elevated temperature and cooling, characterized in that the evaporated products of biochemical processing of sulfite liquors are heated to 40 - 120 o C, add an alkaline reagent to achieve a pH of 6 - 9, carry out ozonation at an ozone concentration of 1.0 - 10.0 mg / DM 3 , then an additional slot is introduced whose amount is 30 - 40% by weight of organic substances, the resulting mixture is heated to 170 - 190 o C, air is bubbled under pressure of 2.5 - 3.0 MPa with a specific flow rate of 50 - 65 nm 3 / m 3 -h for 0 , 5 - 2.0 hours at pH 6.0 - 9.0, after which the resulting mixture is cooled and re-ozonized to a total dose of ozone of 1 - 2% by weight of the organic substances of the mash.
RU97106937/13A 1997-04-29 1997-04-29 Method of processing products of sulfite lye biochemical oxidation RU2113422C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97106937/13A RU2113422C1 (en) 1997-04-29 1997-04-29 Method of processing products of sulfite lye biochemical oxidation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97106937/13A RU2113422C1 (en) 1997-04-29 1997-04-29 Method of processing products of sulfite lye biochemical oxidation

Publications (2)

Publication Number Publication Date
RU2113422C1 RU2113422C1 (en) 1998-06-20
RU97106937A true RU97106937A (en) 1998-12-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU97106937/13A RU2113422C1 (en) 1997-04-29 1997-04-29 Method of processing products of sulfite lye biochemical oxidation

Country Status (1)

Country Link
RU (1) RU2113422C1 (en)

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