发明名称 |
THERMO-OXIDATION OF MUNICIPAL WASTEWATER TREATMENT PLANT SLUDGE FOR PRODUCTION OF CLASS A BIOSOLIDS |
摘要 |
A process for treatment of municipal wastewater plant sludge to the criteria of Class A biosolids. The process uses hydrogen peroxide and thermo-oxidation to reduce volatile suspended solids to meet the criteria. On a batch basis, waste activated sludge is introduced into a reactor; the concentration of the waste activated sludge is adjusted to about 1.5% total suspended solids with secondary effluent, if necessary; the reactor is mixed; the reactor is pre-heated to an operating temperature in a range of about 65° C. to about 90° C.; subsequently, a 50% solution of laboratory grade hydrogen peroxide is introduced into the bottom of the reactor; and the contents are heated for at least 4 hours. |
申请公布号 |
US2015329393(A1) |
申请公布日期 |
2015.11.19 |
申请号 |
US201514711288 |
申请日期 |
2015.05.13 |
申请人 |
Pegasus Technical Services, Inc. ;Government of the United States as Represented by the Administrator of the U.S. Environmental Protec |
发明人 |
Suidan Makram T.;Brenner Richard C.;Holder Edith L.;Grosser Robert J. |
分类号 |
C02F3/12 |
主分类号 |
C02F3/12 |
代理机构 |
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代理人 |
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主权项 |
1. A process for treatment of municipal wastewater plant sludge comprising:
introducing waste activated sludge into a reactor; adjusting the concentration of the waste activated sludge to about 1.5% total suspended solids with secondary effluent; mixing the contents in the reactor; heating the reactor to an operating temperature in a range of about 65° C. to about 90° C.; subsequently introducing a 50% solution of laboratory grade hydrogen peroxide into the bottom of the reactor; and heating the contents for at least 4 hours. |
地址 |
Cincinnati OH US |