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Water treatment agent composition for cyanogen-containing waste water

A technology of water treatment agent and composition, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problem of direct discharge of wastewater that cannot contain cyanide, and achieve inhibition of precipitation and turbidity, improved operability, and improved stability

Active Publication Date: 2018-04-17
KATAYAMA CHEM WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cyanide has a strong adverse effect on the ecosystem, so cyanide-containing wastewater cannot be discharged directly into nature

Method used

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  • Water treatment agent composition for cyanogen-containing waste water
  • Water treatment agent composition for cyanogen-containing waste water
  • Water treatment agent composition for cyanogen-containing waste water

Examples

Experimental program
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preparation example Construction

[0045] [Preparation of water treatment agent composition]

[0046] The water treatment agent composition of this invention can be prepared by mixing said component A-E. In one or more embodiments of preparing the water treatment agent composition of the present invention, in order to obtain a more stable water treatment agent composition, nitrogen-based bubbling treatment may be performed.

[0047] In one or more embodiments, the water treatment agent composition of the present invention may be stored in a container such as a polyethylene tank, or may be used in a state of being placed in a storage tank, a container, or the like.

[0048] In one or more embodiments, from the standpoint of being able to store in a state that maintains stability for a longer period of time in containers such as polyethylene tanks, the water treatment agent composition of the present invention can be introduced into containers such as polyethylene tanks and then used in containers. Purge (replac...

Embodiment

[0059] Although the present invention is specifically described using examples, the present invention is not limited to these examples.

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PUM

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Abstract

Provided is a water treatment agent composition for cyanogen-containing waste water, the water treatment agent composition having improved stability and containing a monovalent copper salt in one or aplurality of embodiments. The present invention relates to a water treatment agent composition for cyanogen-containing waste water, the water treatment agent composition containing: (A) cuprous chloride; (B) at least one selected from the group consisting of an alkali metal chloride, an alkali metal bromide, an alkaline earth metal chloride, and an alkaline earth metal bromide; and (C) inorganicacids and / or organic acids. The content of the (C) inorganic acids and / or organic acids in the water treatment agent composition is 10 weight% or less, and the pH of the water treatment agent composition is 2 or less.

Description

technical field [0001] The invention relates to a water treatment agent composition for cyanide-containing wastewater and a treatment method for cyanide-containing wastewater. Background technique [0002] Cyanide has a strong adverse effect on the ecosystem, so cyanide-containing wastewater cannot be discharged directly into nature. Regarding cyanide, the discharge standard is determined based on the water turbidity method, and the cyanide removal treatment is performed so that the standard (1 mg / L or less) is satisfied, and unless it is not harmless waste water, it cannot be discharged into sewage, etc. In addition, according to the ordinance, there are many areas where additional drainage standards lower than the above-mentioned drainage standard values ​​are determined. [0003] As a method for removing cyanide in cyanide-containing wastewater, Patent Document 1 discloses a treatment method, which is characterized in that, in wastewater containing free cyanide and cyani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/58
CPCC02F1/52C02F1/58C02F2101/18
Inventor 平岛英则
Owner KATAYAMA CHEM WORKS CO LTD
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