城市污水處理廠污泥熱值及影響因素分析-文庫(kù)吧在線文庫(kù)
【正文】 值分析方法, 分別測(cè)定了重慶市主城區(qū)代表性污水處理廠污泥的熱值,通過(guò)對(duì)比分析,提出了較適宜污水處理廠污泥熱值測(cè)定方法。 Combustion 。結(jié)果表明:元素分析法和量熱儀法測(cè)定的污泥熱值較吻合。 2. Chongqi ng Munici pal Admi nistrati on Commi ttee, Chongqi ng 401121 , Chi na) Abstract : The sludge heat value of municipal wastewater treatment plant s in central district of Chongqing was investigated. Combining t he volatile content , ash and element of sludge , factors t hat affected sludge heat value was investigated , and t hen the influence of moist ure on sludge heat value utili2 zation was also discussed. The experiment showed t hat t he result s of element analysi s and calorimeter are accordant . The sl udge volatile content examination was infl uenced by t he wastewater qualit y , drainage system , wastewater t reating process and sl udge feat ure , and t hen effected t he sl udge heat val ue. It was suggested t hat t he sludge ing f rom wastewater t reat ment plant s of bined drainage system and digested sl udge were not fit for bustion. St udy result s f urt her indicated t hat when t he sewage sl udge could be incinerated by it self , t he moi st ure should not be higher t han 68 %. From t he analyses of sl udge element , we find t hat alt hough t he sl udge volatile content of each plant are different , but t he stoichiomet ric form of element i s basically consi stent , we can roughly denote t he stoichiomet ric formula of sewage sludge volatile content CH1. 72 O0. 55 N0. 12 S0. 03 . Keywor ds: WWTPs 。目前,國(guó)內(nèi)外常見(jiàn)的污泥處置方法有填埋、土地 38 給水排水 Vol134 No14 2008 利用、焚燒及綜合利用等 [ 3～6 ] 。用 I KA C5000 控制型量熱儀(德國(guó)) 測(cè)定污泥的熱值。 PV ———揮發(fā)分的含量, %。從表3 可以看出,污水處理廠污泥的固定碳含量極低,可以認(rèn)為污水處理廠污泥的固定碳含量對(duì)燃燒過(guò)程以及灰燼的影響可以忽略不計(jì)。試驗(yàn)污泥的元素組成測(cè)定結(jié)果及元素
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