Golden sand mining waste water purification treatment for complex issues, whether it is gold mining ship or hydraulic placer mining, mineral processing and waste water generated are different from other sewage. This is mainly determined by the nature of the ore. Because the sand mining operation consumes a large amount of water, the amount of sewage is large, and it contains a large amount of mineral particles, clay and mechanical impurities suspended in a high-fine particle dispersion. When sand minerals with a high clay content are mined, there is a large amount of suspended solids, and the sedimentation rate of these suspended solids is very slow. When using closed-circuit circulation water supply, in order to accelerate the clarification and cleaning of the mineral water, the sewage also contains various additives.
Sand gold mine sewage treatment usually uses the following methods:
1. A sedimentation tank with dykes is built downstream of the working area of ​​the gold mining vessel for clarification of the sewage, and the treated water can be used for closed circulation;
2. When the gold mining vessel operates in closed waters, most of the river water flows out through the drainage ditch;
3. In order to reduce the degree of pollution, the suspended matter may be flocculated and precipitated by chemical method or electrolysis method.
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