School Balneal Wastewater Treatment And Reuse Technology Research

With the deterioration of water environment, people are faced with theproblem of shortage of water resources have become increasingly prominent, nowrecycled high-quality waste water recycling has become one of the mosteffective ways to solve this problem. Because of the large amount of water, lowpollution levels and easy centralized processing, bath wastewater can be used fortoilet flushing, sprinkling roads, afforestation and other ways after processed, toachieve local reuse. This not only can effectively improve water use efficiency,ease water shortages, but also to some extent reduce the load of urban sewagetreatment plants to improve their efficiency. Depending on the treatment process,the main bathing wastewater treatment include: physical, chemical, biologicalmethod. For college bathing water, as a result of too little water in the holidays, isnot conducive to maintain the activity of microorganism, not suitable forapplication of biological technique for processing; And separate physical method,water quality and difficult to achieve the ideal effect. Therefore, this test usesCoagulation and Fenton method associated with the process of college bathingwastewater treatment, this process has a process route is simple, high efficiency,and good water quality.This thesis mainly for the feasibility and effectiveness of this treatmentprocess experimental research, and to explore its optimal combination and theoptimal reaction conditions on this basis, test water were taken from Jilin JianZhuUniversity students’ bathroom.Comparative study of the trial Al2(SO4)3, FeCl3, PAC, PAFC and othercoagulants for turbidity, CODcr, LAS and other major pollution indicators bathingwastewater removal, in which the best treatment effect PAC; studied in PACcoagulant treatment as the optimal reaction conditions when bathing, including itsdosage, the optimum pH, choose its optimal dosage coagulant; studied the Fentonreagent ratio, reaction pH, reaction time, reaction temperature, dosing methodsand other factors on Fenton reagent oxidation LAS effect, and to determine themain factors and optimal reaction conditions; study the coagulation and Fentonmethod combined with the feasibility of bathing wastewater treatment,comparative study after the first coagulation Fenton, Fenton after the firstcoagulation, flocculation and Fenton while applying the treatment effect and cost analysis of three kinds of processes.The results show that the PAC as a coagulant, PAM as coagulant, when usedin combination with Fenton’s reagent bathing wastewater treatment university, itstreatment effect is good, the process is simple, stable, easy maintenance, and lowcost of treatment, with a very high practical value.