于1993年3－4月在南汇县东海水产养殖公司罗氏沼虾育苗厂，以自制简易循环过滤装置对罗氏沼虾亲虾池水质进行净化处理。经一个月的试验，试验池水的NH3-N、NO2-N与COD值分别为对照地的32％、33％与63％；此3种指标的去除率分别为44％－62％、58％－69％与16％－19％；碎螺狮壳、沙与石子等滤料的平均净化率为16g／m3·h，活性炭为6g／m3·h。简易过滤装置可有效地净化亲虾池水质，提高亲虾养殖密度与成活率。 From March to April 1993, the water quality of Macrobrachium rosenbergii shrimp pond was purified by self-made simple loop filtration device in the South China Sea aquaculture company Roche Macrobrachium nursery plant. After one-month test, the NH3-N, NO2-N and COD of the test pond water were 32%, 33% and 63% of the control ground respectively; the removal rates of these three indexes were 44% -62% and 58% -69% and 16% -19%, respectively. The average cleaning rate of filter jackets, sand and gravel was 16g / m3 · h and that of activated carbon was 6g / m3 · h. Simple filter device can effectively purify water quality broodstock, raising broodstock breeding density and survival rate.