(续2012年第10期21页)二、排放水处理系统养殖过程中产生的富营养物质主要通过排放水进入到外界环境中,已成为主要的面源污染之一。对养殖排放水进行处理回用或达标排放是池塘养殖生产必须解决的重要问题。目前,养殖排放水的处理一般采用生态化处理方式,也有采用生化、物理、化学等方式进行综合 (Continued on page 10, 2012, p. 21) 2. Effluent Water Treatment System The eutrophic substances produced during the breeding process have become one of the major non-point source pollution by discharging water into the external environment. It is an important issue that pond aquaculture production has to deal with to recycle or discharge the aquaculture water for discharge. At present, aquaculture water treatment generally use the ecological approach, but also the use of biochemical, physical, chemical and other means of synthesis