Title: Method for treating city ditch mud
Application Number: 200610117322 Application Date: 2006.10.19
Publication Number: 1944324 Publication Date: 2007.04.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C04B28/00;C04B18/08;C04B18/30;C04B18/14;C02F11/14;B09B3/00
Applicant(s) Name: Shanghai Univ. Address:
Inventor(s) Name: Qiao Yan;Lu Wenxiong;Wang Lu;Dang Li;Zhang Yuexing
Attorney & Agent: guyong hua
Abstract:
    The method of treating city sludge includes the first air drying and degrading sludge to reach water content below 20 % and the subsequent curing with solidifying agent comprising cement and compound active admixture in certain ratio. The solidifying agent consists of cement 30-50 wt%, fly ash 10-30 wt%, mine slag 10-30 wt%, steel slag 5-20 wt% and zeolite 3-10 wt% mixed together. The sludge solidifying body is formed through mixing city sludge in 20-40 wt%, the said solidifying agent in 15-30 wt%, sand in 30-50 wt% and small amount of water, forming and curing. The sludge solidifying body may be used as the road material and building material.
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