发明名称 |
METHOD OF CONTROLLING CONCENTRATION OF P-CONTAINING TREATMENT LIQUID WASTE |
摘要 |
In a method of controlling the concentration of P-containing treatment liquid waste, there is provided a waste liquid buffer tank capable of, after receiving of P-containing treatment liquid waste, feeding the liquid to a wastewater treatment plant or reserving the waste liquid. While maintaining the concentration of P-containing treatment liquid within a target concentration range, a treatment object is treated. The P concentration of P-containing treatment liquid waste in the waste liquid buffer tank is measured. When the measurement of P concentration is below an allowable upper limit, the P-containing treatment liquid waste is fed from the waste liquid buffer tank to a wastewater treatment plant. When the measurement of P concentration is the allowable upper limit or above, feeding of the P-containing treatment liquid waste to the wastewater treatment plant is discontinued and the waste liquid is reserved in the waste liquid buffer tank. The concentration of P-containing treatment liquid is lowered to a value falling within the target concentration range and the liquid is used to treat the treatment object. |
申请公布号 |
WO2009017178(A1) |
申请公布日期 |
2009.02.05 |
申请号 |
WO2008JP63711 |
申请日期 |
2008.07.24 |
申请人 |
JFE STEEL CORPORATION;YONEDA, SATOSHI;SUGANO, TAKAHIRO;SATO, NOBUYUKI |
发明人 |
YONEDA, SATOSHI;SUGANO, TAKAHIRO;SATO, NOBUYUKI |
分类号 |
C02F1/00;C23C2/26 |
主分类号 |
C02F1/00 |
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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