1996年的《安全饮用水法案》（SDWA）修正案要求美国环境保护局（EPA）制定新的饮用水法规，以减少因饮用水质量导致的急性和慢性疾病。《微生物和消毒副产品规则》（M/DBPRs）是这些规则的一个子集，旨在为公众提供更多保护，防止微生物病原体引起的急性疾病，以及消毒剂和消毒副产品引起的慢性疾病。集成膜系统被认为是同时遵守这些规则的有前途的技术。在俄亥俄州德尔塔的德尔塔水处理厂进行了一项综合膜软化系统中试研究。 饮用水由蓄水的高硬度地表水生产。集成膜系统由微滤和反渗透串联而成。除遵守M/DBPRs外，该研究的主要目标是实现颗粒物至少2 log的去除，以产生浊度小于0.05 NTU的成品水，并产生110-150 mg/L的成品水硬度。使用微滤过滤水库水，以去除颗粒物、贾第虫、隐孢子虫和其他病原体。然后使用低压反渗透处理部分滤液，以降低硬度。将反渗透渗透渗透水和微滤滤液混合，以提供符合目标的成品水。 每两周进行四次季节性运行，以评估系统在不同温度和给水质量下的性能。此外，还进行了2000小时的运行，以评估长期系统性能。监测水库水、微滤滤液、反渗透渗透渗透渗透水和混合水的浊度、颗粒数、总有机碳、总悬浮固体、总溶解固体、铁、锰、三卤甲烷生成电位（THMFP）、卤乙酸生成电位（HAAFP）、pH值、总大肠菌群、硬度和总碱度。包括6个参考文献、表格、图表。

The Safe Drinking Water Act (SDWA) Amendments of 1996 require the U.S. Environmental Protection Agency (EPA) to develop new drinking water regulations intended to reduce acute and chronic illness as a result of drinking water quality. A subset of these rules, the Microbial and Disinfection Byproducts Rules (M/DBPRs), is intended to provide increased public protection from acute illness due to microbial pathogens, and chronic illness resulting from disinfectants and disinfection byproducts. Integrated membrane systems have been identified as promising technology for simultaneous compliance with these rules. An integrated membrane softening system pilot study was conducted at the Delta Water Treatment Plant in Delta, Ohio. Potable water was produced from impounded surface water possessing high hardness. The integrated membrane system consisted of microfiltration and reverse osmosis installed in series. In addition to compliance with the M/DBPRs, the principal objectives of the study were to achieve a minimum of 2 log removal of particulate matter, to produce finished water with turbidity less than 0.05 NTU, and to produce a finished water hardness of 110-150 mg/L.Reservoir water was filtered using microfiltration to remove particulate matter, Giardia, Cryptosporidium and other pathogens. A portion of the filtrate was then treated using low-pressure reverse osmosis for reduction of hardness. Reverse osmosis permeate and microfiltration filtrate were blended to provide finished water conforming to the objectives. Four seasonal runs, each two weeks in length, were performed to evaluate the system performance at varying temperature and feed water quality. Additionally, a 2,000 hour run was conducted to evaluate long term system performance. The reservoir water, microfiltration filtrate, reverse osmosis permeate and blended water were monitored for turbidity, particle counts, total organic carbon, total suspended solids, total dissolved solids, iron, manganese, trihalomethane formation potential (THMFP), haloacetic acid formation potential (HAAFP), pH, total coliform, hardness and total alkalinity. Includes 6 references, tables, figures.