An anaerobic hybrid bioreactor for biologically enhanced primary treatment of domestic wastewater under low temperatures

2018 ◽  
Vol 4 (11) ◽  
pp. 1851-1866 ◽  
Author(s):  
Andrew Pfluger ◽  
Gary Vanzin ◽  
Junko Munakata-Marr ◽  
Linda Figueroa

Anaerobic hybrid reactor system for the generation of methane-rich biogas and energy. An energy-positive alternative to conventional primary treatment of raw domestic wastewater.

2021 ◽  
pp. 108123
Author(s):  
Hafiz Muhammad Aamir Shahzad ◽  
Sher Jamal Khan ◽  
Zeshan ◽  
Yousuf Jamal ◽  
Zunaira Habib

2021 ◽  
Vol 14 ◽  
pp. 51-57
Author(s):  
M.T. Jafarzadeh ◽  
N. Jamshidi ◽  
L. Talebiazar ◽  
R. Aslaniavali

Organic loading rate (OLR), Hydraulic Retention Time (HRT) and up flow velocity are important parameters significantly affecting microbial ecology and characteristics of anaerobic reactors. In this study, Performance of an anaerobic hybrid reactor (UASB/Filter) at mesophilic condition was evaluated in a 15.4 L reactor receiving petrochemical wastewater. The temperature of influent was adjusted by an inline heat exchanger at around 35 ˚C. The reactor was seeded with flocculent sludge from a UASB plant treating dairy wastewater. The sludge was acclimatized to petrochemical wastewater in twostage operation. After 39 weeks, a COD reduction of 70.3% was obtained at OLR=2.0 kg m-3 d-1 and HRT=18 h. Under steady state conditions, experiments were conducted at OLRs of between 0.5 and 24 kg TCOD m-3 d-1 , hydraulic retention times (HRT) of 4-48 h and up flow velocities 0.021-0.25 m h-1. Removal efficiencies in the range of 42-86% were achieved at feed TCOD concentrations of 1000- 4000 mg L-1 . The biogas production data used for determination of biogas production kinetics. The values of Gmax and GB estimated as 11.173 LL-1d -1 and 85.83 g L-1d -1 , respectively.


2008 ◽  
Vol 99 (8) ◽  
pp. 3123-3129 ◽  
Author(s):  
Amit Kumar ◽  
Asheesh Kumar Yadav ◽  
T.R. Sreekrishnan ◽  
Santosh Satya ◽  
C.P. Kaushik

2012 ◽  
Vol 65 (9) ◽  
pp. 1599-1605 ◽  
Author(s):  
Qing-Liang Zhao ◽  
Hui-Yuan Zhong ◽  
Jin-Li Liu ◽  
Yu Liu

More and more research effort has been put into the development of affordable and high-efficiency wastewater reclamation technology for small communities. In this study, an integrated chemically enhanced primary treatment (CEPT), trickling filter (TF) and ultrafiltration (UF) process was developed with success. Coagulant produced from fly ash was used to enhance primary treatment, while trickling filter packed with coal cinder through four-layer structure without aeration was employed for further removal of COD and ammonium-nitrogen from the CEPT effluent. 95 and 88% removal of COD and ammonium were achieved, while total phosphorus (TP) and suspended solid (SS) were found to be removed completely at a coagulant dosage of 2.5 mL/L in the CEPT–TF–UF system. The product water can meet the standard of Reuse of Recycling Water for Urban Water Quality Standard for Urban Miscellaneous Water Consumption (GB/T 18920-2002, China).


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