TY  - SER
AU  - Sutharkar,Kadiravelu
AU  - Chongrak Polprasert,
AU  - Watanabe,Yoshimasa
AU  - Lohani,B.N.
ED  - Royal Natherlands Government,
TI  - Treatment kinetics of septic tank - anaerobic upflow filter
T2  - Thesis
PY  - 1981///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Septic tanks
N1  - A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development; Thesis (M.Eng.) - Asian Institute of Technology, 1981
N2  - This study was aimed at evaluating the performance of an integrated  system of septic tank and anaerobic upflow filter called the 'septic tank-  AUF' as an onsite domestic waste treatment alternative and to investigate  the effectiveness of the AUF in providing further treatment of the septic  tank effluent.  Two full-scale units employed in this study yielded more than 90%  removal efficiencies of TCaD, TSS, VSS and more than 75% scaD reduction  with respect to mean septic tank influent concentrations of about 1,600  mg/l TCaD, 1,250 mg/l TSS, 775 mg/l VSS and 340 mg/l SCaD, respectively,  at the system detention time (6SYS) of 4.5 days and a mean influent organic  loading of 0.5 kg CaD/m3/d. The AUFs yielded more than 60%, 40%, 70% and  65% reductions in TCaD, SCaD, TSS and VSS, respectively, for the correspon-  ding mean septic tank effluent concentrations of about 310 mg/l, 180 mg/l,  170 mg/l and 110 mg/l respectively. It was found that a 1 day 6AUF corres-  ponding to a hydraulic loading of 0.43 m3/m2/d was optimal for the AUF.  Mathematical relationships between J/A and So were established for the AUF  in terms of TcaD and scaD. Engineering application of this relationship  in terms of SCaD was presented in a graphical form as a guideline for· the  design of AUF
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B21589
ER  -