CAJ | 학술논문

城市污泥所含水分性质复杂，有间隙水、毛细水、结合水存在形式。污泥经浓缩、脱水后含固率仍很低，不能自持燃烧。而采用低压、水热预处理和离心式脱水机半干化处理后，可以提高污泥热值，降低运输和贮存成本，同时可以减少燃料和其他物料的消耗，是城市污泥干化可行的技术路线。
성시오니소함수분성질복잡，유간극수、모세수、결합수존재형식。오니경농축、탈수후함고솔잉흔저，불능자지연소。이채용저압、수열예처리화리심식탈수궤반간화처리후，가이제고오니열치，강저운수화저존성본，동시가이감소연료화기타물료적소모，시성시오니간화가행적기술로선。
The existence form contained in urban sludge is complex including interstitial water, capillary water and combined water. Hence, the solid content is still low and cannot be self-sustaining combustion after concentration and dehydration. This article introduces a feasible technology for drying sludge. This technique is using low-pressure, hydrothermal pretreatment and centrifugal dewatering machine semi-dry process to dry sludge, which can improve the calorific value of sludge, reduce the costs of transportation and storage and the consumption of fuel and other materials.