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Microbiological Study of Water-Softener Resins

机译：软水树脂的微生物学研究

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Microbial identification using effluents backflushed from exhausted urban and rural tank resins and cleaned resins containing the sulfonated copolymer of styrene and divinylbenzene (SDB) were completed, along with microbial assessment of the concentrated stock salt brine. Forty-four different bacterial and fungal genera were identified. Extensive biochemical and animal virulence tests completed on one of the six bacterial salt brine isolates indicated a pathogenic staphylococcal strain. The retention of Staphylococcus aureus, a Flavobacterium sp, and Escherichia coli B bacteriophage was demonstrated both by using the nonexhausted sodium-regenerated resin and by using the same resin exchanged with different mono-, di-, and trivalent cations. Effluent counts completed after bacterial seepage through the resins indicated the Pb++ exchanged resin removed 55% of the bacteria; Na+, Fe++, and Al+++ removed 31 to 36% and Ca++ and Cu++ removed about 10 to 15%. Seventy per cent or more of the bacteriophage was removed by Fe++, Cu++, and Al+++, whereas the Ca++ and Na++ cations removed 25 to 31%. Over a 77-day period, nonsterile tap water was passed through bacterial seeded and uninoculated SDB (Na) resin columns. Effluent and resin elution counts demonstrated the growth and survival of 2 different bacteria per column. Increased bacterial retention, survival, and multiplication occurred concomitantly with accumulation of organic and inorganic materials and the Ca++ and Mg++ cations from the tap water. Furthermore, microbial elution from resin particles taken from column depths of 1, 8, and 16 cm indicated a bacterial diminution with increasing depths.
机译：完成了使用从耗尽的城市和农村储罐树脂中倒流的废水以及含有苯乙烯和二乙烯基苯磺化共聚物（SDB）的清洁树脂进行的微生物鉴定，以及对浓盐盐水的微生物评估。鉴定了44个不同的细菌和真菌属。对六种细菌盐水盐水分离物中的一种完成的广泛生化和动物毒力测试表明，其是病原性葡萄球菌菌株。通过使用未耗尽的钠再生树脂和使用相同的树脂交换不同的一价，二价和三价阳离子，证明了金黄色葡萄球菌，黄杆菌属细菌和大肠杆菌B噬菌体的保留。细菌通过树脂渗出后完成的出水计数表明，Pb ++交换树脂去除了55％的细菌。 Na +，Fe ++和Al +++去除31％至36％，Ca ++和Cu ++去除约10％至15％。 Fe ++，Cu ++和Al +++去除了70％或以上的噬菌体，而Ca ++和Na ++阳离子去除了25％至31％。在77天的时间内，将非无菌自来水通过细菌接种和未接种的SDB（Na）树脂柱。流出物和树脂洗脱计数表明每根柱上有2种不同细菌的生长和存活。自来水中有机物和无机物以及Ca ++和Mg ++阳离子的积累伴随细菌的滞留，存活和繁殖增加。此外，从色谱柱深度分别为1、8和16 cm的树脂颗粒中进行的微生物洗脱表明，随着深度的增加细菌会减少。

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