Batch anaerobic reactor treating piggery
wastewater process conditions
Abstract: In this paper, single-factor factorial experiment, on the batch of pig manure wastewater treatment anaerobic reactor the optimum conditions for the exploration and research. Experimental results show that manure substrate consumption rate and the level of the initial COD value has little to do, when the initial COD was 4000mg/L, the largest gas production, anaerobic reactor up and running, you can directly take the raw water sampling; When the reaction temperature is 35℃, the optimum temperature activity of bacteria, pig manure wastewater COD decrease rate of the fastest, the temperature, the maximum gas production, actual production in anaerobic reactor temperature of 35℃ level should be maintained; 350mL Fecal water, with addition of 100ml sludge, pig manure wastewater COD fastest rate of change, while the maximum gas production, and the time at least, 0.33 days have gas production, that at this time by a unit volume of microbial nutrition the proportion of state property in the best nutrition; pig manure wastewater under different initial COD value, the drop rate changed little, and when the initial PH is 8.04, still produce more carbon dioxide, indicating acid bacteria have greater The PH range of adaptation, but methanogens in the PH value of 6.9 only a very small range of activity near the Strong, the scope of activity than the much lower value of methanogenic bacteria is very sensitive to PH.
Keywords: Intermittent; Anaerobic reactors; Single factor analysis; Optimum conditions
