Urban Life After The Fermentation Of Organic Waste Anaerobic Biogas Slurry Processing

The technologic treatment, coagulation-sedimentation, Up-flow Anaerobic Sludge Blanket (UASB) reactor and Sequencing Batch Reactor (SBR), has been studied to dispose with based on pilot-scale experiment. Concrete to congeal mixing, UASB reactor, SBR reactor each relative problem of craft carry on the discussion, draw the following conclusions:1. Through adopt various kinds of coagulant mix to congeal to urban life organic rubbish detest oxygen ferment natural pond liquid, find out a kind of most suitable coagulant. COD removal rate of trichloro-iron and polymeric aluminium chloride is most high, while COD removal rate of sodium silicate is most low. To the same kind of coagulant, the getting rid of rate improves with increase of the density, arrive until a limit, get rid of leading and rise very slowly. Generally speaking, while using actually , the quantity of a coagulant should be thought over because of economic parameter.2. When inoculated with surplus sludge from municipal wastewater treatment plant and cultivated step-by-step at ambient temperature of 35±1°C in the reactor of UASB, by controlling the organic loading rate. The sludge , in UASB reactor, can be started up within 50 days , with OLR up to 6.0 kgCOD/m~3· d and COD removal rate over 85%, which is little in 1-4 months to start more than the routine.3. After several days' impact of the urban life organic rubbish detest oxygen ferment natural pond liquid, COD removal rate is rising obviously and over 80% with the trained detest sludge.4. COD removal rate is rising obviously and over 80% with SBR, as the reactor after UASB. The effluent can meet the national sanitary standard for municipal waste water draining.