According to the characteristics of mine water from Tongkeng, the heavy metal Zn 2+ ions in wastewater will be removed by composite flocculation. Through the experimental study on composite flocculation factors, containing drug types, drug ratio, drug time, pH value, stir time and stir intensity, analyzed the factors on the Zn 2+ ions removal effect in wastewater treatment. The results show that through experimental parameters optimization, the removal rate can achieve 97% by the application of composite flocculation to treat mine water with Zn 2+ ions. The effluent quality can satisfy national integrated wastewater discharge standard requirement.
To compile the software package of the mine digitization information system in terms of the principle and methods of mathematics geology and geographic information system using computer languages such as VB and Matlab, this paper introduces the function composition and operating environment of this information system, and illustrates the function and effectiveness of the software package as exemplified by the Lanping Pb-Zn mine, Yunnan Province.
According to quality of raw water from tongkeng mine analyzed the factors in the process of "coagulationsediment-filter"on the Zn 2+ ions removal effect in wastewater treatment. Based on static test results take the dynamic tests on water quantity dosage of PAC and PAM, dosing way etc. The results show that through experimental parameters optimization, the removal rate can achieve 90.25% by the process of "coagulation-sediment-filter"to treat mine water with Zn 2+ ions. The effluent quality can satisfy national integrated wastewater discharge standard requirement. Keyword-the mine water; Zn 2+ ions; coagulating sedimentation process; dynamic tests;
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