次氯酸钠(NaOCl)在PT. HS出水除氨中的应用

Hiqmatus Sholichah
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引用次数: 1

摘要

摘要PT HS是一家世界领先的玩具制造公司,拥有6000多名员工。由于PT. HS的工人人数众多,这将影响到家庭活动(如排便)。根据废水排放年度报告,注意到PT HS废水的参数氨超过了平均氨浓度为50 mg/L的工业限值。而在工业园区法规中,包含了企业必须遵守的几个标准参数,如氨标准,其废水出水最高为10 mg/L。目的:了解NaOCl 9%对氨氮去除的最佳投加量及处理后的余氯浓度。方法与结果:本研究采用实验方法获取原始数据。经过室内实验,结果证明,次氯酸钠暴露可降低水样中氨浓度,接触时间为30分钟,当NaOCl 9%溶液110 mg/L时,氨浓度从50 mg/L降至8.9 mg/L,去除率为82.2%,余氯为0.72 mg/L。结论:氯化处理能有效降低氨浓度。余氯仍在不超过1 mg/L的标准限量范围内。结果还表明,次氯酸钠的剂量变化会影响氨的去除效率。总体余氯预测值随氯钠用量的增加而增加。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of sodium hypochlorite (NaOCl) for ammonia removal in wastewater effluent of PT. HS

Abstract. PT HS is a world’s leading toy manufacturing company with more than 6,000 workers. Due to the high number of workers in PT. HS, it will impact to domestic activities (toilet discharge). Based on the annual report for wastewater effluent, noted that parameter ammonia from PT HS’s wastewater effluent was exceeding the industrial estate limit which the average of ammonia concentration is 50 mg/L. Whereas, In the industrial estate regulation contain of several standard parameters that must be comply by the company such as ammonia standard which has maximum 10 mg/L for the wastewater effluent. Objectives: The objectives of this experiment are to know the optimum dose of NaOCl 9% on ammonia removal and to know the concentration of residual chlorine after the treatment process. Method and results: This research use the experimental method to get the primary data. After the experiment in the laboratory, the results proved that the sodium hypochlorite exposure reduces ammonia concentration in water samples with 82,2% removal efficiency from 50 mg/L to 8,9 mg/L ammonia concentration reduced with 110 mg/L of NaOCl 9% solution within 30 minutes contact time and it resulted the residual chlorine 0.72 mg/L. Conclusion: The chlorination process was effective to reduce the ammonia concentration. Also, the residual chlorine was still in the standard limit which not exceeds from 1 mg/L. The result also shows that the dose variations of sodium hypochlorite influence ammonia removal efficiencies. Also, mostly the total residual chlorine forecast will increase with the increasing sodium chlorine dose.

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