Bench studies of biological treatment of simulated wastewater from oil and additives production of LLK-International at the facility: "Additives production complex in Volgograd"
The subject of the study was the processes of biological oxidation of methanol taking place under conditions of free-floating activated sludge and attached microorganisms
Goal:
Obtaining reliable information on the parameters of biooxidation of organic substances under conditions of simultaneous presence of methanol, potassium acetate and acetic acid in wastewater simulant.
Implementation:
ECOSTECH R&D Center carried out tests on self-manufactured small-sized IBR and LBR rig installations.
Bench tests were developed according to a special program, included several stages and took place with the participation of attached biocoenosis and free-floating activated sludge. The program implementation was carried out in parallel at 2 installations and consisted of the following stages:
1
adjustment of the operating mode of the units and verification of compliance of the initial concentrations of pollutants with the target values according to the study program;
2
adaptation of biological treatment system of simulated wastewater
3
testing of the study program at initial methanol concentration of 400 mg/l;
4
testing of the study program at initial methanol concentration of 600 mg/l
5
testing of the study program at initial methanol concentration of 800 mg/l;
6
sampling and chemical analyses at all stages of the study program;
7
summarizing the obtained information and writing a report with the results of the study
OUTCOME :
Studies conducted on bench installations in flowing round-the-clock mode have shown the possibility, expediency and reliability of biological treatment application in methanol removal using free-floating activated sludge and immobilized microorganisms at its ultimate initial concentration of 800 mg/l. According to the data obtained by using 2-stage biological oxidation system for the total residence time of 43.6 h residual methanol values of about 0.1 mg/l were obtained, which corresponds to the MPC of methanol for discharge into water bodies of commercial fishing significance. Considering the fact that biological treatment is a traditional and cost-effective technology it is recommended to use it for removal of high concentrations of methanol from industrial wastewaters.
CONTACTS
8 (800) 222-0903
ecostech@ecosgroup.com
346400, Rostov region,
Novocherkassk, pr. Yermaka, 106, office 303
ecostech@ecosgroup.com
346400, Rostov region,
Novocherkassk, pr. Yermaka, 106, office 303
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