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首页> 外文期刊>Journal of industrial and engineering chemistry >Removal of turbidity from drinking water using natural coagulants
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Removal of turbidity from drinking water using natural coagulants

机译：使用天然凝结剂去除饮用水饮用水

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摘要

The ability of three plant materials, seeds such as Moringa oleifera, Strychnos potatorum and Phaseolus vulgaris, to act as natural coagulants was tested using synthetic turbid water formulated to resemble the drinking water. An improved and alternative method for the extraction of the active coagulant agent M. oleifera, S. potatorum, P. vulgaris seeds was developed and compared with the conventional water extraction method. In the new method the seeds were extracted using different solvents of NaCl and NaOH to extract the active coagulant agent from natural coagulants. In addition, ultrasound was investigated as a potential method to assist the extraction process. Batch coagulation experiments were conducted to evaluate the performance of the extracted coagulant achieved through various schemes. The optimum turbidity removal at different values of initial synthetic wastewater turbidity from 100 to 500 NTU was investigated. Sodium chloride at 0.5 M was found to provide a high turbidity removal of >99% compared to NaOH and distilled water extract. Among these three coagulant M. oleifera seed extracts is the highest performance in turbidity removal. The optimum coagulant dosage showed the coagulation with blended coagulant M. oleifera, S. potatorum and P. vulgaris. The study was carried out for initial turbidity of the sample such as 100 NTU (low), 250 NTU (medium) and 500 NTU (high). For the natural coagulant dosage was found to be 250-1000 mg/L respectively. It was found that the percentage of removal is highest in M. oleifera.
机译：三种植物材料，种子如Moringa Oleifera，Strychnos Potatorum和Phaseolus Vensolus的能力，用配制的合成浑浊水通过配制的合成浑浊水而测试为天然凝结剂，以类似于饮用水。一种改进的替代方法，用于提取活性凝结剂M. Oleifera，S. potatorum，P.Vulgaris籽粒，与常规水提取法相比。在新的方法中，使用NaCl和NaOH的不同溶剂提取种子，以从天然凝结剂中提取活性凝结剂。此外，研究了超声波作为有助于提取过程的潜在方法。进行分批凝结实验以评估通过各种方案实现的提取凝结剂的性能。研究了从100至500 NTU的初始合成废水浊度的不同值下的最佳浊度去除。发现氯化钠在0.5米处，与NaOH和蒸馏水提取物相比，提供高浊度的去除> 99％。在这三种凝结剂中，油脂籽提取物是浊度去除的最高性能。最佳的凝结剂剂量显示用混纺凝结剂M. Oleifera，S. potatorum和P.Ventgaris的凝固。该研究是针对样品的初始浊度进行，例如100nTU（低），250nTu（中）和500种NTU（高）。对于天然凝结剂剂量分别为250-1000mg / L.发现在M. Oleifera中去除的百分比最高。

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