TREATMENT OF TAPIOCA WASTEWATER BY USING BIOLOGICAL HYBRID SYSTEM | Zendy

Phuoc Van Nguyen | Zendy; Phuong Thi Thanh Nguyen | Zendy; Thi Thu Le | Zendy

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TREATMENT OF TAPIOCA WASTEWATER BY USING BIOLOGICAL HYBRID SYSTEM

Author(s) -

Phuoc Van Nguyen,

Phuong Thi Thanh Nguyen,

Thi Thu Le

Publication year - 2009

Publication title -

science and technology development journal

Language(s) - English

Resource type - Journals

ISSN - 1859-0128

DOI - 10.32508/stdj.v12i2.2204

Subject(s) - effluent , biofilter , hydraulic retention time , pollutant , wastewater , nutrient , environmental science , pulp and paper industry , vietnamese , environmental engineering , chemistry , engineering , linguistics , philosophy , organic chemistry

Tapioca processing industry discharged into environment a significant amount of pollutants. Where, organic compounds, nutrient, and toxin CN- concentration exceeded Vietnamese discharged Standard up to hundreds of times. The study on biological hybrid system, combining aerobic biofilter and aerotank attained COD, N-NH3 treatment efficiencies in range of 98%, 95%, respectively at the optimal organic loading rate of 1 kg COD/m3.day, according to hydraulic retention time of one day. Biomass of microrganism in this system can reach to the value of 10,000 mg/L. The effluent reached to Vietnamese Standard 5945-2005, column B.

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