论文部分内容阅读
以猪场沼液为研究对象,在ASBR(厌氧序批式反应器)内采用充氩吹托带出PH3的方式,在680 nm处用分光光度法测定PH3氧化成磷酸盐后的浓度,以研究p H、TP、COD、Cu~(2+)这4种因素对猪场沼液产磷化氢的影响,为揭示PH3转化过程对猪场废水中其他形态磷的补充提供有效的理论依据。结果表明:在偏酸性的实验条件下,PH3产量明显较中性和碱性条件下产量多;PH3产量与TP在一定程度上呈正相关;COD在270~620 mg·L-1范围时能促进PH3的产生,而在630~980 mg·L-1范围时则抑制PH3的产生;Cu~(2+)浓度处于1.2~4.0 mg·L-1时,Cu~(2+)浓度与PH3产量呈负相关。
Taking piggery biogas slurry as the research object, PH3 was blown out with argon in the ASBR (Anaerobic Sequencing Batch Reactor), the concentration of PH3 oxidized to phosphate was determined by spectrophotometry at 680 nm, The effects of pH, TP, COD and Cu ~ (2+) on the production of phosphine in pig farms were studied in order to reveal that PH3 conversion process could provide an effective theory for the replenishment of other forms of phosphorus in wastewater from pig farms in accordance with. The results showed that under the acidic conditions, the yield of PH3 was significantly higher than that under neutral and alkaline conditions. The yield of PH3 was positively correlated with TP to a certain degree. When COD ranged from 270 to 620 mg · L-1 PH3, and inhibited the production of PH3 in the range of 630 ~ 980 mg · L-1. When Cu 2+ concentration was 1.2-4.0 mg · L-1, the concentration of Cu 2+ and the production of PH 3 Negative correlation.