CAJ | 학술논문

污泥预处理对污泥水解有较大促进作用,可以明显改善污泥的脱水、厌氧消化性能及其减量化。本文通过比较4种预处理方法加热、加碱、微波、超声波对剩余活性污泥水解性能的影响,探索效率高、成本低的污泥预处理技术。研究结果显示,加热、加碱对污泥水解的促进作用要明显高于微波、超声波预处理,其中加碱预处理的水解效率最高,处理后污泥的SCOD浓度最大提高了16.8倍,而SS、VSS最多分别减少了34%和41%。
오니예처리대오니수해유교대촉진작용,가이명현개선오니적탈수、염양소화성능급기감양화。본문통과비교4충예처리방법가열、가감、미파、초성파대잉여활성오니수해성능적영향,탐색효솔고、성본저적오니예처리기술。연구결과현시,가열、가감대오니수해적촉진작용요명현고우미파、초성파예처리,기중가감예처리적수해효솔최고,처리후오니적SCOD농도최대제고료16.8배,이SS、VSS최다분별감소료34%화41%。
Pretreatments promote the hydrolysis of sewage sludge to improve the dehydration, anaerobic digestability and reduction of sludge. In this paper, the effects of four pretreatment processes including heating, alkalization, microwave and ultrasound on hydrolysis of residual activated sludge were compared to explore some pretreatment processes with higher efficiency and lower cost. The results showed that the promotion effect of heating and alkalization were significantly higher than that of microwave and ultrasound. Especially alkalization had the highest hydrolysis efficiency, by which the maximum increase of SCOD was up to 16. 8 times, meanwhile the maximum reduction of SS and VSS were 34% and 41% respectively.