Urban waste solids are now becoming one of the most crucial environmental problems. There are several different kinds of technologies normally used for waste solids disposal, among which landfill is more favorable in China than others, especially for urban waste solids. Most of the design works up to now are based on a roughly estimation of the amount of urban waste solids without any theoretical support, which lead to a series problems. To meet the basic information requirements for the design work, the amount of the urban waste solids was predicted in this research by applying the gray theoretical model GM (1,1) through non2linear differential equation simulation. The model parameters were estimated with the least square method (LSM) by running a certain MATALAB program, and the hypothesis test results show that the residual between the prediction value and the actual value approximately comply with the normal distribution N (0,01212), and the probability of the residual within the range (-0117, 0119) is more than 95%, which indicate obviously that the model can be well used for the prediction of the amount of waste solids and those had been already testified by the latest two years data about the urban waste solids from Loudi City of China. With this model, the predicted amount of the waste solids produced in Loudi City in the next 30 years is 8049000 ton in total .

在厌氧反应1h，好氧反应4h，缺氧反应2h 的运行条件下，研究了序批式反应器中好氧颗粒污泥同步除磷脱氮的情况，并对好氧颗粒污泥除磷脱氮的机理进行了探讨。试验结果表明，该系统对氮、磷和有机物具有良好的去除效果，对氨氮、总无机氮、磷、COD的去除率分别达到89.2%～98.9%，81.3%～89.4%，86.8%～90.0% 和82.7%～96.6%。

采用人工配制的模拟生活污水，研究序批式反应器（SBR） 中好氧颗粒污泥的培养。 实验结果表明:通过对进水碳源进行调控，反应器中形成了高活性具有同步硝化反硝化能力的好氧颗粒污泥，反应器中COD和NH3N的去除率分别为74.0%～92.8% 和82.3%～98.5%。颗粒污泥的粒径一般为0 5～1.0mm，MLSS 达到4.5g•L-1以上，SVI值约为32.5， 其有效生物量及脱氮性能远远高于一般的好氧活性污泥。

在对垃圾填埋场中有机物的溶出、降解规律分析的基础上，建立了预测渗滤液中COD 浓度的数学模型，并通过试验得出了模型中的参数。利用该模型并结合娄底市界木冲垃圾填埋场的垃圾填埋方案，预测出了界木冲垃圾填埋场在封场前、后渗滤液中的COD 浓度变化情况。

sole carbon source under nitrate respiration mode first for 6 week, and then can be turned to methane fermentation conditions. After 6 weeks processing, the specific rate of TA degradation under nitrate respiration mode reached 23.8mgTA (L•gVSS), more than two times of that under methane fermentation mode 11.4mg TA (L•gVSS). The TA reductive cleavers’population density increased about 6 times and 20 times after 30 days and 90 days acclimation. After a total of 90 days for the enrichment and acclimation, the fermentative bacteria which originally existed in the seed sludge nearly disappeared, and instead of them, the TA reductive and cleaving bacteria group was formed in the new consortia, which was confirmed by the MPN counts and roll tube counts. Compared with the control experiment, the acclimation period can be shortened by about 50%.