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At present, China's water quality is deteriorating, the phenomenon of increasingly serious pollution of drinking water sources, the conventional water treatment process is difficult to effectively remove organic contamination of source water, ammonia and other pollutants, water quality does not meet drinking water standards. Therefore, seeking efficient and economical slightly polluted source water treatment process is an important and urgent task. The topics to Fuyanghe contaminated raw water source water for the trial, had a \in the pilot study. Research zeolite - carbon composite filter for ammonia, organic adsorption performance; By examining the hydraulic loading, gas-water ratio, temperature, filling height of zeolite - carbon composite filter media biofilter decontamination effect of zeolite - Activated carbon composite filter media biofilter for optimal control of operating parameters and effect analysis; To learn more theoretically zeolite - carbon composite filter biological filter, according to the test conditions and theoretical analysis, to establish a suitable zeolite - carbon composite filter biofilter kinetic model; By examining the ozone dosage, BAC column filtration rate, BAC column filling height and temperature on the O 3 -BAC process of decontamination effect on O < sub> 3 -BAC process for optimal control of operating parameters and effects analysis; Based on the above analysis, the subject had a \BAC \Zeolite - carbon composite filter static adsorption tests showed that the filter on the raw water UV 254 and NH 4 -N removal of certain effects, and has rapid absorption characteristics. 40min after adsorption of UV 254 removal rate was 21.7% for NH 4 -N removal rate was 34.5%. Zeolite - carbon composite filter on NH 4 -N adsorption capacity by adsorption time, media consumption, ammonia concentration and other factors. Within a certain range, with the adsorption time, media usage, and increasing concentrations of ammonia, ammonia nitrogen removal rate increases. Through the static adsorption experiment, obtained zeolite - carbon composite filter media adsorption isotherm is: lg q e = 1.4698lgC e 0.7763. The results showed that zeolite - carbon composite filter media biofilter best running conditions: influent flow 98.0L / h, hydraulic loading of 5.0m / h, air-water ratio of 1.0. When the water temperature is 21 2 7.5 ℃, the optimum operating conditions in the zeolite - carbon composite filter media biofilter of turbidity, COD Mn , UV 254 , NH 4 -N, NO 2 - -N, with good color removal, the average removal rates were 72.8%, 30.2%, 25.5%, 76.8%, 79.3%, 69.4%. Based on the test data to determine its condition at low substrate removal of organic pollutants kinetic model for the S / S 0 = exp (-0.0418h / q 0.7414 ). When the ozone contact time was 12 1 5min, ozone dosage of 2.0mg / L, BAC column filtration rate of 6.0m / h, the water temperature is 21 2 7.5 ℃ when , O 3 -BAC decontamination process works best for turbidity, COD Mn , UV 254 , NH 4 < / sub> -N, NO 2 - -N, chroma, the average removal were 61.2%, 56.6% 65.9% 68.3%, 98.3% and 85.8%. Control BAC column filtration rate is 6.0m / h, on the BAC column height different carbon layer analysis of the effects of decontamination. The results showed that, BAC column focused on the removal of turbidity front 200mm height range of organic matter and ammonia removal mainly in the first 600mm height range, therefore, considering, BAC column to determine the optimum filling height of 600mm . This test is optional PAC (PAC) as coagulant, coagulation tests to determine the best through the beaker dosage of 25mg / L. Combined process of coagulation tank, inclined plate sedimentation tank, zeolite - carbon composite filter biological filter, ozone contact tank and BAC filter operating parameters were as follows: PAC coagulant dosage of 25mg / L, coagulation water force retention time of 20min, inclined plate sedimentation tank hydraulic retention time of 60min, zeolite - carbon composite filter media biofilter filtration rate of 5.0m / h, corresponding to the empty bed contact time (EBCT) was 12min, air-water ratio 1.0, ozone exposure time control in 12 1 5min, ozone dosage of 2.0mg / L, BAC filter filtration rate of 6.0m / h, corresponding to the empty bed contact time (EBCT) is 10min . In this operating condition, the combined process COD Mn , UV 254 , NH 4 -N, NO < sub> 2 - -N, turbidity, color, the average removal rates were 76.9%, 80.5%, 93.9%, 99.7%, 97.3%, 95.8% Average effluent COD Mn , UV 254 , NH 4 -N, turbidity, color, respectively 1.81mg / L, 0.031cm -1 , 0.12mg / L, 0.29NTU, 1.5 degrees, the water NO 2 - -N concentration was less than 0.003mg / L, below the detection limit, the water quality is better than \
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