Study on submerged anaerobic membrane bioreactor (SAMBR) treating high suspended solids raw tannery wastewater for biogas production.
This study deals with the treatment of high suspended solids raw tannery wastewater using flat sheet Submerged Anaerobic Membrane (0.4μm) Bioreactor (SAMBR) acclimatized with hypersaline anaerobic seed sludge for recovering biogas. The treatability of SAMBR achieved higher CODremoval efficiency (90%) and biogas yield (0.160L.g(-1) CODremoved) coincided with high r(2) values between permeate flux and TSS (0.95), biogas and COD removed (0.96). The acidification of hypersaline influent wastewater by biogas mixing with high CO2, achieved quadruplet benefit of gas liquid and solid separation, in-situ pH and NH3 control, in-situ CH4 enrichment, and prevention of membrane fouling. The initial high VFA became stable as time elapsed reveals the hydrolysing ability of particulate COD into soluble COD and into biogas, confirms the suitability of SAMBR for high suspended solids tannery wastewater.
Tamil Nadu Pollution Control Board, No. 76, Mount Salai, Guindy, Chennai 600032, Tamil Nadu, India.
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Umaiyakunjaram
Environmental Technology Department, Central Leather Research Institute (Council of Scientific and Industrial Research), Adyar, Chennai 600020, Tamil Nadu, India. Electronic address: pashanmugam@yahoo.com.
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Shanmugam
D000468:Alkalies / Q000032:analysis; D000641:Ammonia / Q000032:analysis; D000693:Anaerobiosis; D056804:Biofuels / Q000032:analysis; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D005232:Fatty Acids, Volatile / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D008567:Membranes, Artificial; D012722:Sewage / Q000737:chemistry*; D013633:Tanning; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000737:chemistry*; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*
D000468:Alkalies; D000641:Ammonia; D056804:Biofuels; D005232:Fatty Acids, Volatile; D008567:Membranes, Artificial; D012722:Sewage; D062065:Wastewater
Biogas; Flat sheet; Permeate flux; Raw tannery wastewater; Submerged anaerobic membrane bioreactor