FAS-Jet aeration system was adopted in the improved oxidation ditch and there were no anoxic zone and anaerobic zone in the oxidation ditch,which depressed the nitrification and denitrification reaction in the traditional oxidation ditch,reduced the cost of nutrient salt and achieved higher CODCrremoval rate.
改良型氧化沟采用低压射流曝气,沟中不存在缺氧区和厌氧区,抑制了传统氧化沟中的硝化与反硝化作用,降低了营养盐的投加成本,并可达到更好的CODCr去除率。
The article makes an approach to the evolution of the sand-shooting mechanisnl ford on the viewpoint and points outthat; low pressure shooting is the best process a.
根据这一观点，对射砂机构的演化进行了探讨，指出低压射砂是目前最优秀的射砂工艺。
