Tonggukeng River Phosphorus Pollution Characteristics And Control Technology Research

In recent years, through the farmland area, industrial area, living area and other functionalarea of the receiving river water frequent eutrophication phenomenon, seriously affecting thewater quality security and ecological landscape water, and restricted economic and socialsustainable development. The important factors to control eutrophication is p, therefore, researchon characteristics of phosphorus pollution in rivers and on this basis, to explore the phosphoruspollution control technology, it has great realistic.This paper takes Guangzhou Huadu District Xin Jie, Tonggukeng River as study object, thedetermination of the system reach a hydrological year along six sampling sections of thephosphorus content of pollutants. The study found that:(1) the river along the TP years theaverage contents of0.0312mg/L,0.0334mg/L,0.2918mg/L,0.1909mg/L,0.3989mg/L and0.3715mg/L, Xinzhuang reservoir outlet, Tonggukeng bridge section reached the surface waterenvironmental quality standard III, Bu Gang Cun, The East Village monitoring fault surface reachIV standard, Luo Chang Cun, Tonggu bridge monitoring sections to reach V standard, Reachexisting phosphorus pollution phenomenon, gradually deepened along.(2) the river along the TP,TDP, DIP changes with similarity. In addition to the abundant water period Bu Gang Cun, theEast Village, Luo Chang Cun monitoring sections along the process was first up then down andup trend, other monitoring sections are all increase along the content.(3) of each monitoringsection of phosphorus content of the river has a strong seasonal variation: Xinzhuang reservoiroutlet and drum pit bridge section: the dry season> level period> water period; Bu Gang Cun,Luo Chang Cun section: the abundant water period> level period> dry season; the East Villagesection: TP: rainy season>> dry season water period, TDP, DIP: in normal water period of dryseason water period>>. Tonggu bridge section: TP: high water period> level period> dry period,TDP, DIP: level period>> dry season water period.(4) comparison of nearly three years of riverflows through the section of phosphorus content of overseas Chinese town flower science andTechnology Industrial Park, found that: the TP content becomes low, DIP/TP remained stable,TDP/TP showed the change trend, increasing according to the analysis, associated with thecomprehensive management of overseas Chinese Industrial Park wastewater. Based on understanding the characteristics of phosphorus pollution in river, with the5L/hflow of A2/O process for treatment of phosphorus pollution heavier Luo Chang Cun section water,the results show that:(1) the optimal parameters of A2/O process is: aeration quantity0.6m3/h,anaerobic hydraulic retention time2h, sludge return ratio65%.(2) A2/O adding MBR pooltechnology improve the removal rate test, effluent phosphorus removal rate increased5.40%, theeffect is not obvious.(3) the A2/O technology adding sand filter to improve phosphorus removalrate test, respectively, with small gravel, quartz sand, mixed material is the material, sand filterphosphorus removal rate of average values were1.65%,12.75%,19.25%, the best effect ofhybrid filter.