全面综述了垃圾组成、垃圾水分含量、垃圾坝处理与填埋操作方式、填埋场地水文气象条件，渗滤液pH值与氧化还原电位及微生物种群等填埋场稳定化的影响因素。

对分类收集的城市生活有机垃圾采用专门设计的兼氧沤解预液化一常温厌氧消化的工艺技术进行处理。试验结果显示，兼氧抠解对生活有机垃圾的预液具有较好的效果，液化率达80%以上，可以满足反应器对生活有机垃圾预处理的要求。

The induction of micronuclei (MN) in polychromatic erythrocytes (PCE) of mouse bone marrow by municipal landfill leachate was studied in vivo. Results showed that mouse exposure via drinking water containing various concentrations of leachate caused a significant increase of MN frequencies in a concentration (Chemical oxygen demand measured with potassium dichromate oxidation, CODCr)-dependent manner. MN induction in female and male mice was different at higher concentrations. This implies that leachate is a genotoxic agent in mammalian cells and that exposure to leachate in an aquatic environment may pose a potential genotoxic risk to human beings.

Selective removal of SO2, H2S andNOx from gas streams (air or towngas) was investigated using aqueous solutions of 12-molybdophosphoric acid and its reduced molybdenum blue species. The experimental results showed that H2S and SO2 in the gas streams can be removed quantitatively by yellow solution of 12molybdophosphoric acid. The H2S was oxidized into recoverable elemental sulfur and SO2 into H2SO4, while the yellow solution was reduced into blue species (reduced molybdenum blue). The obtained reduced molybdenum blue solution was then used for the quantitative removal of NOx, which was reduced into N2 and the blue solution was then oxidized back into yellow species. It is possible that the regenration of scrubbing solution is not required and no chemical is consumed during absorption, when NOx, SO2 and/or H2S coexisted in wastegases and the molar ratios of NO2/(SO2+H2S) is just equal to 1/2, although, in most cases, the ratio in real practical wastegases is not always equal to the value. The absorption mechanism was studied in detail. It was found that only one olybdenum atom in 12molybdophosphoric acid was reduced from Mo (Ⅵ) to Mo (Ⅴ) by H2S or H2SO3 and the Mo (Ⅴ) was oxidized back into Mo (Ⅵ) in the case of Nox absorption. 12-molybdophsophoric acid used in this work is inexpensive, commercially available, easily regeneratable, relatively nontoxic, and gives no secondary pollutant in the process.

In this work, the relationship between heavy metal content of fly ash and that of the solid wastes incinerated was correlated and compared. It is found that the former is a function of the latter. Hence, it is important to prevent heavy metal-rich wastes from being incinerated in order to reduce the content of toxic metals in the fly ash. The leachability of fly ash from incineration was usually beyond the scope of toxicity standard and must be properly treated before discharge. Secondly, chemical stabilization for the heavy metals in fly ash was explored. Among the chemicals used, it was found that sodium hydroxide was not suitable for the adequate extraction of the heavy metals from the fly ash. Ethylenediaminetetraacetic acid disodium salt (EDTA) was also tested and seems to be effective for the leaching of toxic metals from the fly ash. On the other hand, sodium sulfide and thiourea are one of excellent chemicals for the effective treatment of fly ashes, since they convert soluble and leachable toxic metals into non-leachable and insoluble forms such as lead and zinc sulfide or their similar forms of thiourea. These chemical species are supposed to be stable in nature. A comparison between chemical stabilization noted above and cement or asphalt solidification methods is made. Chemical stabilization processes, especially using sodium sulfide as the chemical agent, are strongly recommended for the practical uses, in terms of the volume expansion and environmental safety of the stabilized products and cost balances, in comparison with the traditional cement or asphalt solidification methods.