发明名称 |
Wastewater treating agent, method for wastewater treatment, sludge dehydrant and method for sludge treatment |
摘要 |
Sulfonated styrene polymer and/or its salt, a waste water treatment material and sludge dehydrating agent each containing the sulfonated styrene polymer and/or its salt as an effective component thereof are disclosed. The waste water treatment material is used such that the sulfonated styrene polymer and/or its salt, which has a viscosity of 10 mPa.S to 20,000 mPa.S at 25° C. after 0.01 N to 5 N of a neutral salt has been added to the 1 wt % water solution of the sulfonated styrene polymer and/or its salt, is added to each waste water so that waste water is purified. When a sludge dehydrating agent is required, the sulfonated styrene polymer and/or its salt having a weight average molecular weight of 1,100,000 or greater is combined with a cation polymer flocculating agent or an inorganic flocculating agent.
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申请公布号 |
US6573336(B1) |
申请公布日期 |
2003.06.03 |
申请号 |
US20000367799 |
申请日期 |
2000.01.07 |
申请人 |
SONY CORPORATION;LION CORP. |
发明人 |
INAGAKI YASUHITO;WATANABE HARUO;KIUCHI SHIGEO;KANO TAKAAKI |
分类号 |
B01D21/00;B01D21/01;C02F1/56;C02F11/14;(IPC1-7):C08F8/36 |
主分类号 |
B01D21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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