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发明授权
CN106148709B 化学镀镍废液中的镍回收处理方法 有权 转让

化学镀镍废液中的镍回收处理方法
摘要：
本发明涉及表面处理与污水处理领域，尤指一种化学镀镍废液中的镍回收处理方法，包括以下步骤：步骤一：用浓度为2g/L的NaOH调整化学镍废液的pH至6‑10；步骤二：将SSC EN STARTER引发剂加入装有化学镍废液溶液槽中，对溶液槽加温至70‑95℃；步骤三：每隔5分钟加入浓度为1g/L的还原剂和浓度为2g/L的NaOH，每次搅拌至少0.4‑1小时；步骤四：过滤后获得滤液A，用浓度为2g/L的NaOH调整滤液ApH至11‑13；步骤五：向滤液A中加入浓度为0.1–1g/L的SSC EN WT ST添加剂,搅拌0.4‑1小时；步骤六：停止搅拌，过滤后获得滤液B，用稀硫酸中和滤液B至pH 6‑8。
摘要（英）：

The invention relates to the field of surface treatment and sewage treatment, in particular to a nickel recycling and disposal method in chemical nickel plating waste liquor. The nickel recycling and disposal method comprises the following steps: step I, regulating pH value of the chemical nickel plating waste liquor to 6-10 by NaOH with concentration being 2g/L; step II, adding an SSC EN STARTER initiator into a solution tank with the chemical nickel plating waste liquor, and heating the solution tank to 70-95 DEG C; step III, adding a reducing agent with concentration being 1g/L and NaOH with concentration being 2g/L every five minutes, and stirring for at least 0.4-1 hour every time; step IV, filtering to obtain filtrate A, regulating the pH value of the filtrate A to 11-13 by use of NaOH with concentration being 2g/L; step V, adding an SSC EN WT ST additive with concentration being 0.1-1g/L into the filtrate A, and stirring for 0.4-1 hour; and step VI, stopping stirring, filtering to obtain filtrate B, and neutralizing the filtrate B by use of dilute sulfuric acid until pH value of the filtrate B is 6-8.

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