Water quality index of reservoir source water were tracked during three years in a north frigid area,the effect on supplied water quality was also studied.Based on the analysis of the monitoring data during the same s...Water quality index of reservoir source water were tracked during three years in a north frigid area,the effect on supplied water quality was also studied.Based on the analysis of the monitoring data during the same season,the reservoir source water had typical and seasonal variation characteristics that was divided into four periods including the icebound period,spring period(or peach blossom period),stable period in summer and autumn and winter period.The icebound period was charactered by the typical low temperature and turbidity,pH and oxygen consumption decreased gradually showed that the gradually anaerobic trend existed in the reservoir.In May as the reservoir completely thawed,upstream water inflow and the total pollutant in the reservoir gradually increased,but the bottom of reservoir bottom was stable in the anaerobic state temporarily.The state completely disappeared,various index increased significantly in the middle of July.The water had high chroma characteristics,chroma and turbidity increased significantly in the summer and autumn(7-11months),but stability of water quality was poor because of rainfall.The reservoir gradually froze after the middle of November and the flow of water decreased.The peak of chroma appeared a month later than the water temperature.Due to the water turbidity was low,and the floc was small and light,the conventional water purification process design based on removal of turbidity achieved removal of chroma through a lot dosing of coagulant.展开更多
为了进一步了解p H值、Fe2+与H2O2投加量、反应时间与反应温度等因素对Fenton体系的影响机理,试验采用Fenton法,以养猪场与屠宰场废水为处理对象,进行了色度去除影响因素优化试验。结果表明:处理100 m L废水,养猪场废水色度去除最佳p H...为了进一步了解p H值、Fe2+与H2O2投加量、反应时间与反应温度等因素对Fenton体系的影响机理,试验采用Fenton法,以养猪场与屠宰场废水为处理对象,进行了色度去除影响因素优化试验。结果表明:处理100 m L废水,养猪场废水色度去除最佳p H值、Fe2+与H2O2投加量、反应时间与反应温度分别为3,2.8×10-4mol Fe SO4/(倍·L)与1.4×10-1mol H2O2/(倍·L)、90 min、25℃,屠宰场为5,9.0×10-6mol Fe SO4/(倍·L)与6.0×10-3mol H2O2/(倍·L)、90 min、20℃,此时两种废水最佳色度去除率分别为77%与98%。展开更多
基金Sponsored by the Science and Technology Research Project of Heilongjiang Province Education Department(Grant No.12513088)PromisingYoungsters Training Program of Heilongjiang University of Science and Technology(Grant No.Q20120201)
文摘Water quality index of reservoir source water were tracked during three years in a north frigid area,the effect on supplied water quality was also studied.Based on the analysis of the monitoring data during the same season,the reservoir source water had typical and seasonal variation characteristics that was divided into four periods including the icebound period,spring period(or peach blossom period),stable period in summer and autumn and winter period.The icebound period was charactered by the typical low temperature and turbidity,pH and oxygen consumption decreased gradually showed that the gradually anaerobic trend existed in the reservoir.In May as the reservoir completely thawed,upstream water inflow and the total pollutant in the reservoir gradually increased,but the bottom of reservoir bottom was stable in the anaerobic state temporarily.The state completely disappeared,various index increased significantly in the middle of July.The water had high chroma characteristics,chroma and turbidity increased significantly in the summer and autumn(7-11months),but stability of water quality was poor because of rainfall.The reservoir gradually froze after the middle of November and the flow of water decreased.The peak of chroma appeared a month later than the water temperature.Due to the water turbidity was low,and the floc was small and light,the conventional water purification process design based on removal of turbidity achieved removal of chroma through a lot dosing of coagulant.
文摘为了进一步了解p H值、Fe2+与H2O2投加量、反应时间与反应温度等因素对Fenton体系的影响机理,试验采用Fenton法,以养猪场与屠宰场废水为处理对象,进行了色度去除影响因素优化试验。结果表明:处理100 m L废水,养猪场废水色度去除最佳p H值、Fe2+与H2O2投加量、反应时间与反应温度分别为3,2.8×10-4mol Fe SO4/(倍·L)与1.4×10-1mol H2O2/(倍·L)、90 min、25℃,屠宰场为5,9.0×10-6mol Fe SO4/(倍·L)与6.0×10-3mol H2O2/(倍·L)、90 min、20℃,此时两种废水最佳色度去除率分别为77%与98%。
