利用OxiTop BOD测试仪测定微生物耗氧量的方法，对邻氟苯酚、间氟苯酚和对氟苯酚三种污染物好氧生物降解性能进行了研究。结果表明：邻氟苯酚、间氟苯酚和对氟苯酚的生物氧化率分别是25.30%，35.28%和36.60%，其好氧生物降解速率常数分别是0.0093、0.0133和0.0145 L·(g·h)-1，好氧生物降解性能的顺序为对氟苯酚>间氟苯酚>邻氟苯酚。

以周庄河道内源磷负荷为对象，通过实验室模拟，研究了上覆水pH值、溶解氧及环境温度对内源磷释放的影响。结果表明，pH5.0～9.5，上覆水中的磷浓度随pH值的升高而增加；在不同溶解氧释放条件下，缺氧促进内源磷的释放，好氯抑制磷释放，其抑制能力和pH值相关，pH值7.0-9.5,好氧的抑制效果明显：在好氧的条件下,高的溶解氧会增加磷的释放；温度和上覆水中总磷平衡浓度的对数呈正线性关系。采用Golterman分类提取方法，对不同释放条件下各形态内源磷的稳定性进行了考察。

High Rate Algal Ponds (HRAP) were operated at pilot scale to investigate the performance of HRAP under the temperate climate conditions of Shanghai, China. The results indicated that the HRAP gave good efficiency for mutrient removal, especially during summer, With a retention time of 4 or 8d according to the season, the annualaverage removal efficiencies for COD, NH4-Nand PO4-P were 50%, 87% and 40%, respectively factors.Using a macrophyte pond to separate algae from HRAP can achieve concentrations of COD, TP and TKN in the effluent at around 50mg/L, 1.5mg/L and5mg/L respectively.

Nitrogen & phosphorus removal in subsurface constructed wetland treating agriculture was studied in pilot-scale. The experimental results showed that constructed wetland has considerable potential for removing nutrient. The longer the hydraulie retention time is, the higher removal efficiency of nitrogen and phosphorus is. The removal effieieney of TN was above 60% in macrophyte bed system whem the hydraulic retention time was longer than 3 days. Removal of TN followed first-order plug flow kineties. Rate constant of Non-plant bed, Phragmilas communis bed and Zizania eaduciflara bed was 0.36, 0.60 and 0.47 (I/d) respectivesy. TN removed by harvesting represcnted aboat 15% compared to the load into constructed wetland system. At the low loading rate, the plant uptake is mainly removal pathway for TP removal. At higher TP loading rate, adsorption to the substrate and sedimentation in bed (including bacteria uptake) were cosidered to be the main TP. removal processes. Phragmitas communis bed and zizania caducifiora bed had 21.4～26.55f%, and 14.3～2.3% in TP removal efficiency, which was higher than on-plant bed to be.

A new cleaner technology for the recovery of poly (3-hydroxybutyrate) (PHB) from Alcaligenes eutrophus is reported. This involves continuously using the recycle-wastewater combined with small additions of surfactant and chelate to recover PHB, treating the final wastewater with hydrochloric acid and activated carbon when the purity of recovered PHB was decreased to less than 96%, which was called one round of recovery, and reusing the treated wastewater together with adding small amounts of surfactant and chelate to start another round of PHB recovery. This paper focuses on the determination of suitable surfactant and chelate dosage, and how many times the wastewater might be utilized. A high purity of PHB was obtained and the required surfactant and chelate and the volume of discharged wastewater were reduced by using recycled wastewater. The purity of PHB was higher than 96%, and the recovery rate was near 90% under conditions of the ratios of surfactant and chelate to dry biomass were 0.0075 and 0.01, respectively, temperature 15