CAJ | 학술논문

以pH，MLSS，MLVSS，TU，SCOD和DD为指标，试验探究壅塞空化技术破解剩余污泥的有效性，研究流量、背压和破解时间等实验变量对破解效果的影响规律，寻求有利于破解的最优结构参数和水力参数。试验结果表明：壅塞空化技术破解剩余污泥是有效的，破解后MLSS和MLVSS下降，SCOD和TU升高，pH值变化不大，破解的效能随着流量的增大而增强，随着背压的增大而先增大后减小；最佳较优工况是流量为1.2730 m3/h和背压为238.45 kPa，该工况下循环10次时，DD达13.249%。
이pH，MLSS，MLVSS，TU，SCOD화DD위지표，시험탐구옹새공화기술파해잉여오니적유효성，연구류량、배압화파해시간등실험변량대파해효과적영향규률，심구유리우파해적최우결구삼수화수력삼수。시험결과표명：옹새공화기술파해잉여오니시유효적，파해후MLSS화MLVSS하강，SCOD화TU승고，pH치변화불대，파해적효능수착류량적증대이증강，수착배압적증대이선증대후감소；최가교우공황시류량위1.2730 m3/h화배압위238.45 kPa，해공황하순배10차시，DD체13.249%。
With pH, MLSS, MLVSS, TU, SCOD and DD as evaluating index, the effectiveness of disruption of excess sludge with choking cavitation was researched experimentally, and the flow, back pressure and disruption time on the disrupting effects were investigated to seek the optimal structure parameter and hydraulic parameter. Results indicate that choking cavitation is an effective method for disruption of the excess sludge. After the excess sludge disrupting, MLSS and MLVSS reduce, SCOD and TU rise, and pH has little change. The disrupting ability is enhanced with the increase of flow, and with the back pressure increasing, it firstly enhanced and then weakened;The better operating condition is the flow of 1.273 0 m3/h and the back pressure of 238.45 kPa. Under this condition DD is up to 13.249% after looping 10 times.