养殖池排污水循环处理技术的研究

养殖排污水循环处理系统由轮虫净化池、沉淀净化池、反冲式物理过滤装置和生物净化池组成。物理过滤系统主要是通过水流的反冲式流动,使大量的污物停留在系统的下层,利于从系统中排除;化学处理主要是通过低值、高效的化学絮凝剂;生物净化主要是通过细菌、微藻和轮虫等生物群落综合处理来实现。经净化的养殖污水可进入虾池循环使用或排放外海。

Technology of Recycle of the Shrimp Culture Wastewater

Recycle system of shrimp culture wastewater was consisted of rotifer pond, deposit pond, bounce-back physical filtrate instrument and biological filtrate pond. At first the culture wastewater was elementary purified through the rotifer pond. Then the suspended matter of the culture wastewater was adsorbed by the cheap and effective flocculated reagent and precipitated in the deposit pond. The precipitation was deleted through the bounce-back water flow with the physical filtrate instrument. Finally, biological purify was realized by biology stocks including bacteria, microalgae and rotifer in the biological filtrate pond. The treated wastewater may enter into the sea or recycle in the culture pond.