In this paper, starting from the action mechanism of environmental osmotic pressure and microorganisms in activated sludge, a wastewater sample from a wastewater treatment plant was selected to determine the impact of...In this paper, starting from the action mechanism of environmental osmotic pressure and microorganisms in activated sludge, a wastewater sample from a wastewater treatment plant was selected to determine the impact of chloride ion concentration on its wastewater treatment effect, and mixed solutions with different chloride ion concentrations were prepared to test the nitrification and denitrification effects, and the comprehensive evaluation of sludge activity and drainage water quality was realized. The research results show that the microorganisms contained in activated sludge have certain chloride ion tolerance ability, but when the chloride ion concentration changes abruptly or exceeds the limit value, it will damage the microorganisms and reduce the sludge activity and the treatment effect. In the actual production process, measures such as A2O-MBBR improvement process, activated sludge domestication method, wastewater dilution and other chemical substances addition can also be introduced in combination with the actual production requirements to effectively adjust the chloride ion concentration, reduce the impact of chloride ion on sludge activity and improve the system treatment efficiency.展开更多
文摘In this paper, starting from the action mechanism of environmental osmotic pressure and microorganisms in activated sludge, a wastewater sample from a wastewater treatment plant was selected to determine the impact of chloride ion concentration on its wastewater treatment effect, and mixed solutions with different chloride ion concentrations were prepared to test the nitrification and denitrification effects, and the comprehensive evaluation of sludge activity and drainage water quality was realized. The research results show that the microorganisms contained in activated sludge have certain chloride ion tolerance ability, but when the chloride ion concentration changes abruptly or exceeds the limit value, it will damage the microorganisms and reduce the sludge activity and the treatment effect. In the actual production process, measures such as A2O-MBBR improvement process, activated sludge domestication method, wastewater dilution and other chemical substances addition can also be introduced in combination with the actual production requirements to effectively adjust the chloride ion concentration, reduce the impact of chloride ion on sludge activity and improve the system treatment efficiency.
