TY  - SER
AU  - Okui,Hiroyuki
AU  - Chongrak Polprasert,
AU  - Mino,Takashi
AU  - Zhuang,Ya-Hui
ED  - Tokyu Co nstruct ion Company Ltd.,
TI  - Advanced primary treatment of a domestic wastewater with polymer technology
T2  - Thesis
PY  - 1991///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Sewage
KW  - Purification
KW  - Polymers and polymerization
N1  - A thesis submitted in partial fulfillment of the requirements  for the degree of Master of Engineering; Thesis (M.Eng.) - Asian Institute of Technology, 1991
N2  - Chemically enhanced primary treatment using ferric chloride  in conjunction with cationic polymer (CAT-FLOC-CL) and anionic  polymer (R-300) was tested for the treatment of AIT wastewater  based on pilot-plant experiments. The appropriate dosages (ferric chloride = 40 mg/l, CAT-FLOC CL = 10 mg/l, R-300 = 1 mg/l) was  determined by jar tests, considering the effect of each chemical  on the charge neutralization. In pilot-plant experiments,  maximum removal efficiencies of 71%, 57%, 65%, 78% for total COD, soluble COD, SS and total phosphate, respectively, were observed  for the AIT wastewater. However, these removal efficiencies were  affected by flowrate and influent characteristics. The dewater-ability of sludge produced was examined by the measurement of  sludge resistance and capillary suction time. The better dewater-ability was obtainable by the chemical addition when compared to  the conventional primary sludge
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B17404
ER  -