CAJ | 학술논문

主要通过分析苏州新区水厂的净水污泥来探究净水污泥的成分、主要的物相组成与性质,并且初步评估了利用净水污泥制备吸附剂的可行性。研究表明,净水污泥有机质含量约为18%左右,主要的矿物组成为石英、白云母和高岭土等。此外,还对水厂污泥进行了比表面和热重分析测试。由于污泥灰的化学组成与粘土相似,因此可以利用净水污泥制备去除水中重金属离子的吸附剂。以Cd2＋为吸附对象,研究了吸附时间、吸附温度、初始浓度及pH对污泥吸附效果的影响。
주요통과분석소주신구수엄적정수오니래탐구정수오니적성분、주요적물상조성여성질,병차초보평고료이용정수오니제비흡부제적가행성。연구표명,정수오니유궤질함량약위18%좌우,주요적광물조성위석영、백운모화고령토등。차외,환대수엄오니진행료비표면화열중분석측시。유우오니회적화학조성여점토상사,인차가이이용정수오니제비거제수중중금속리자적흡부제。이Cd2＋위흡부대상,연구료흡부시간、흡부온도、초시농도급pH대오니흡부효과적영향。
This paper have mainly analyzed the composition and main characterizations of the DWTP sludge from water plants in Suzhou New District and evaluated the feasibility of using the sludge to prepare the adsorbent.The study shows that the sludge contains 18% organic matter,and its main mineral constituents are muscovite,quartz,kaolinite and so on.Furthermore,the specific surface and TGA in the sludge are tested.Due to the similar composition of the clay and the water treatment sludge,the sludge can be used as an adsorbent to remove the heavy metal from the aqueous solution.The paper also studied the influences of adsorption time,adsorption temperature,initial solution and pH value on the adsorption effect by taking the Cd2＋ as an adsorption target.