有色冶金设计与研究
有色冶金設計與研究
유색야금설계여연구
Nonferrous Metals Engineering & Research
2015年
4期
56-61
,共6页
甄广印%龙吉生%白力%赵由才
甄廣印%龍吉生%白力%趙由纔
견엄인%룡길생%백력%조유재
污泥%水分分布%脱水性能%胞外聚合物
汙泥%水分分佈%脫水性能%胞外聚閤物
오니%수분분포%탈수성능%포외취합물
waste activated sludge%water distribution%dewaterability%extracellular polymeric substances (EPS)
随着我国城市化进程的加快,城市污泥大量产生,环境污染日益加剧,高含水率特质已成为制约污泥无害化处置的关键控制因子。明确污泥脱水性能影响因素,对于污泥强化脱水和安全管理具有重要指导意义。文章系统探讨了胞外聚合物(EPS)含量/组分、粒径分布、Zeta电位(ζ)和黏度等因素对污泥脱水性能的影响规律与作用机制,为强化污泥脱水、构建污泥脱水技术新体系提供理论参考。
隨著我國城市化進程的加快,城市汙泥大量產生,環境汙染日益加劇,高含水率特質已成為製約汙泥無害化處置的關鍵控製因子。明確汙泥脫水性能影響因素,對于汙泥彊化脫水和安全管理具有重要指導意義。文章繫統探討瞭胞外聚閤物(EPS)含量/組分、粒徑分佈、Zeta電位(ζ)和黏度等因素對汙泥脫水性能的影響規律與作用機製,為彊化汙泥脫水、構建汙泥脫水技術新體繫提供理論參攷。
수착아국성시화진정적가쾌,성시오니대양산생,배경오염일익가극,고함수솔특질이성위제약오니무해화처치적관건공제인자。명학오니탈수성능영향인소,대우오니강화탈수화안전관리구유중요지도의의。문장계통탐토료포외취합물(EPS)함량/조분、립경분포、Zeta전위(ζ)화점도등인소대오니탈수성능적영향규률여작용궤제,위강화오니탈수、구건오니탈수기술신체계제공이론삼고。
The increase in wastewater treatment activities has been confronted with a dramatically increased amount of waste sludge. A common characteristic of different types of sludge is the high moisture content, which represents a major obstacle for sludge treatment and disposal in an environmental friendly manner. The clarification of factors affecting the dewaterability of sludge is very significant for sludge dewatering and subsequent management. In this review, the effects of extracellular polymeric substances (EPS), particle distribution, Zeta potential (ζ), and viscosity etc. on sludge dewaterability, and responsible mechanisms were illustrated systematically, which will further serve as a theoretical basis for the development of innovative and environmentally friendly technologies addressing the sludge issues.