Copper and zinc in sludge extract were removed by improved ferrite coprecipitation process using lime milk as neutralization reagent.
采用改进铁氧体共沉淀法，用石灰乳溶液作中和剂，从污泥浸出液中去除铜、锌。
New technological process to extract copper powder and nickel sulfate from electroplating sludge was reported in this paper, and the economic barometer of technology procedures was examined in test.
提出了利用铜镍电镀污泥生产金属铜和硫酸镍的工艺流程，并用试验考察了各工序的技术经济指标。
The residual sludge from Licunhe wastewater treatment plant was hydrolyzed by alkali hydrolysis to extract protein at different ratio of solid to liquid at different temperature, reaction time and pH.
为充分提取污水污泥中的细胞蛋白，实现污泥的增值利用，以青岛市李村河污水处理厂剩余污泥为材料，采用碱水解法提取剩余污泥中的蛋白质。
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