CAJ | 학술논문

将污泥与树皮按照一定比例混合,利用自主研制的滚筒式污泥生物干化中试系统进行实验,通过对温度、含水率、 O2和 CO2浓度、挥发性固体(VS)、 pH 等参数的检测,研究了通风强度对市政污泥生物干化效果的影响.结果表明,通风强度对污泥生物干化有较大影响,通风强度(以 VS 计)为120 L?(h?kg)-1时,最高温度达到66℃,55℃以上高温可以维持40 h 以上,111 h 后污泥最终含水率可以降低至56％；生物干化过程中 pH 始终保持在6.5~8.5之间,不会影响微生物生命活动；滚筒式污泥生物干化反应器能够使反应器内基质均一性良好,对利用滚筒式反应器实现污泥连续流处理提供参考.
장오니여수피안조일정비례혼합,이용자주연제적곤통식오니생물간화중시계통진행실험,통과대온도、함수솔、 O2화 CO2농도、휘발성고체(VS)、 pH 등삼수적검측,연구료통풍강도대시정오니생물간화효과적영향.결과표명,통풍강도대오니생물간화유교대영향,통풍강도(이 VS 계)위120 L?(h?kg)-1시,최고온도체도66℃,55℃이상고온가이유지40 h 이상,111 h 후오니최종함수솔가이강저지56％；생물간화과정중 pH 시종보지재6.5~8.5지간,불회영향미생물생명활동；곤통식오니생물간화반응기능구사반응기내기질균일성량호,대이용곤통식반응기실현오니련속류처리제공삼고.
A drum-type biodrying pilot scale test system was made to treat the municipal sludge. Sludge was mixed with barks according to certain proportion, and was used to study the influence of air flux on municipal sludge biodrying through parameter detection, such as temperature, moisture content, pH and volatile solid (VS). Results showed that air flux had a great influence on the effect of biodrying. When the air flux was 120 L?(h?kg) - 1 , the best result was obtained, the highest sludge temperature was 66℃and the temperature could remain upon 55℃ for more than 40 h. After 111 h, the moisture content reduced to 56% . The pH remained at 6. 5-8. 5 through the whole biodrying process. As a result, the microorganism activities would not be affected. The sludge inside the drum-type biodrying system was homogeneous. This research provides a reference about sludge treatment using a continues flow process by drum-type biodrying system.