发明名称 |
Sludge treatment apparatus |
摘要 |
A sludge treatment method allowing an improvement in a phosphorus recovery rate and sludge volume reduction by efficiently eluting phosphorus in the sludge. The sludge treatment method includes: a step of foaming a sludge-containing liquid by blowing an ozone-containing gas into the sludge-containing liquid; and a step of eluting phosphorus in the sludge-containing liquid by bringing sludge adsorbed on bubbles and a sludge-dissolving agent into contact with each other. The sludge treatment method may further include the steps of: separating the phosphorus eluted sludge-containing liquid into a phosphorus eluate and a residual sludge; and precipitating a phosphorus compound by adding a coagulant to the separated phosphorus eluate.
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申请公布号 |
US7288191(B2) |
申请公布日期 |
2007.10.30 |
申请号 |
US20040961113 |
申请日期 |
2004.10.12 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
YASUNAGA NOZOMU;KAMIYA TOSHIYUKI;NAKATSUGAWA NAOKI;HIROTSUJI JUNJI |
分类号 |
C02F11/14;C02F1/52;C02F1/78;C02F11/00;C02F11/06 |
主分类号 |
C02F11/14 |
代理机构 |
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主权项 |
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地址 |
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