Zhen-Jia Zhang

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Zeolite synthesized from fly ash (ZFA) without modification is not efficient for the purification of NH4+ and phosphate at low concentrations that occur in real effluents, despite the high potential removal capacity. To develop an effective technique to enhance the removal efficiency of ammonium and phosphate at low concentrations, ZFA was modified with(More)
Sludge granulation is considered to be the most critical parameter governing successful operation of an upflow anaerobic sludge blanket and expanded granular sludge bed (EGSB) reactors. Pre-granulated seeding sludge could greatly reduce the required startup time. Two lab-scale and a pilot-scale EGSB reactors were operated to treat Shaoxing Wastewater(More)
Activated alumina was studied for removing phosphate from water, and the recovery of adsorbed phosphate on activated aluminum oxide was also tested. Phosphate solution was prepared using distilled water, tap water and Luoshijiang River water, respectively. All the phosphate adsorption tests using activated alumina were proved to be well fitted with Langmuir(More)
The performance of pilot scale hybrid process of fluidized biofilm process, chemical coagulation and ultrafiltration system for surface water treatment was studied. In order to remove ammonia nitrogen (NH4+-N) and DOC efficiently, fluidized biofilm process with entrapped nitrifying bacteria pellets and powder activated carbon was applied to the hybrid(More)
The distillery wastewater of Guangdong Jiujiang Distillery, which is characteristic of containing high organic matters and rich total nitrogen, was treated by a combination of methane fermentation and denitrification/nitrification processes. 80% of COD in the raw wastewater was removed by methane fermentation at the COD volumetric loading rate of 20 kg(More)
In the pilot study on the treatment of mother liquid of polyvinyl chloride produced by suspension polymerization (SPVC) by using a novel aerobic treatment system-4 cascade aerobic biofilm reactors with internal circulation, the removal efficiencies of the COD and turbidity at different HRT together with the resistance impact of the system were researched.(More)
In order to overcome the disadvantages of the anaerobic reactor such as slow growth and long start-up, the flocculent anaerobic sludge was embedded and used as the seed sludge in the anaerobic treatment of PTA wastewater with the objective of keeping biomass in the reactor. The start-up characteristics of the UASB reactor were investigated. During the 136(More)
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