REMOVAL OF HEPATITIS-A VIRUS (HAV), POLIOVIRUS AND MS2 COLIPHAGE BY COAGULATION AND HIGH-RATE FILTRATION
REMOVAL OF HEPATITIS-A VIRUS (HAV), POLIOVIRUS AND MS2 COLIPHAGE BY COAGULATION AND HIGH-RATE FILTRATION
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DOI：
10.1016/0273-1223(95)00242-f
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发表时间：
1995-01-01
影响因子：
2.7
通讯作者：
ADIN, A
中科院分区：
文献类型：
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作者：
NASSER, A;WEINBERG, D;ADIN, A
过滤被认为是从地表水源生产无病原体饮用水的强制性操作单元。本研究旨在通过高速过滤确定肠道致病病毒（甲型肝炎病毒和脊髓灰质炎病毒）的去除效率，并确定F+噬菌体作为这些病原体去除指标的适用性。采用半开试验确定了高速过滤试验中的最佳絮凝剂投加量。在明矾浓度为30 mg/l时，与脊髓灰质炎病毒1型（47%）和浊度（61%）相比，观察到HAV（88.4%）的最大减少。加入1 mg/l的阳离子絮凝剂可使HAV的絮凝去除率提高到98.3%，而对PIO 1和浊度的去除率没有提高。浓度为15.3mg/l的腐殖酸的存在干扰了HAV和浊度的絮凝性能，而阳离子絮凝剂的加入可明显降低干扰。使用100 cm长的砂柱进行高速过滤（20 m/hr），导致浊度、MS 2和脊髓灰质炎病毒1分别降低99%、93%和80%。投加絮凝剂可提高病毒和浊度的去除率。在腐殖酸的存在下，没有病毒去除观察到高速率过滤，而浊度去除不受影响。MS 2的清除类似于HAV，而不是脊髓灰质炎病毒1。高速过滤被发现有效地去除病原性病毒和浊度从地表水。在所有试验条件下，浊度的去除率均大于病毒的去除率。
Filtration is considered a mandatory operation unit for the production of pathogen free drinking water from surface sources. This study was undertaken to determine the removal efficiency of enteric pathogenic viruses (hepatitis A virus and poliovirus) by high rate filtration and to determine the suitability of F+bacteriophages as index for the removal of these pathogens. Ajar test was used to determine the optimal flocculation dose to be used in the high rate filtration experiments. At an alum concentration of 30 mg/l, the greatest reduction was observed for HAV (88.4%) as compared with poliovirus 1 (47%) and turbidity (61%). Addition of 1 mg/l cationic polyelectrolyte improved the reduction of HAV to 98.3% by flocculation, while the removal of polio 1 and turbidity was not improved, The presence of humic acid at a concentration of 15.3 mg/l interfered with flocculation performance of HAV and turbidity, while the addition of the cationic polyelectrolyte reduced the interference appreciably. High rate filtration (20 m/hr) using a 100 cm long sand column, resulted in reduction of 99%, 93% and 80% of turbidity, MS2 and poliovirus 1, respectively. Addition of polyelectrolyte enhanced the removal of viruses and turbidity. In the presence of humic acid no virus removal was observed by high rate filtration, whereas turbidity removal was unaffected. The removal of MS2 was similar to that of HAV rather than poliovirus 1. High rate filtration was found efficient for the removal of pathogenic viruses and turbidity from surface water. Under all conditions tested the removal of turbidity was greater than that of viruses.