Investigation on Excess Sludge Reduction Technique Using Injector-type Ozone Reactor
نویسندگان
چکیده
منابع مشابه
Investigation of the Excess Sludge Reduction in SBR by Oxidizing Some Sludge by Ozone
The excessive biological sludge production is one of the disadvantages of aerobic process such as SBR. So the problem of excess sludge production along with its treatment , and disposal in aerobic processes in municipal and industrial waste water can be seen in many parts of the world even in our country . to solve the problem of excess sludge production , reducing in by oxidizing some of t...
متن کاملinvestigation of the excess sludge reduction in sbr by oxidizing some sludge by ozone
the excessive biological sludge production is one of the disadvantages of aerobic process such as sbr. so the problem of excess sludge production along with its treatment , and disposal in aerobic processes in municipal and industrial waste water can be seen in many parts of the world even in our country . to solve the problem of excess sludge production , reducing in by oxidizing some of the s...
متن کاملReduction of Excess Sludge in Sewage Treatment by Ozone Application
A new process which attains both excess sludge reduction and phosphorus recovery has been developed. In this paper, characteristics of sludge solubilization by ozone were investigated in batch experiments with sludge taken from an A/O reactor supplied with synthetic sewage and several real wastewater treatment plants. Then, performance of the new developed process was investigated in a laborato...
متن کاملReduction of excess sludge production by ozonation
The literature on reduction of excess sludge production by ozonation is summarized. Two sequencing batch reactor experiments where sludge is ozonated for this purpose are performed. The purpose of these is to evaluate the prospects of using ozonation to reduce excess sludge production in two different kinds of sludge. Urban sewage sludge is used in the first, and paper mill sludge in the second...
متن کاملA modified oxic-settling-anaerobic activated sludge process using gravity thickening for excess sludge reduction
Oxic-settling-anaerobic process (OSA) was known as a cost-effective way to reduce the excess sludge production with simple upgrade of conventional activated sludge process (CAS). A low oxidation-reduction potential (ORP) level was the key factor to sludge decay and lysis in the sludge holding tank of the OSA process. However, the ORP control with nitrogen purge or chemical dosing in the OSA pro...
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ژورنال
عنوان ژورنال: Journal of Environmental Conservation Engineering
سال: 2004
ISSN: 1882-8590,0388-9459
DOI: 10.5956/jriet.33.391