为促进城市有机废弃物的减量化与资源化利用，以城市污泥和园林绿化废弃物为堆肥原料，研究城市污泥与园林绿化废弃物不同配比对共堆肥效果的影响。结果表明：不同配比对共堆肥效果具有显著影响。与质量比2∶3和3∶3的处理相比，城市污泥与园林绿化废弃物采用4.5∶3的比例可显著加快堆体升温进程，提高堆体温度并延长高温持续时间；各处理水溶性有机碳与有机质含量均随堆肥进行而下降，其中4.5∶3与6∶3处理的降解量显著高于2∶3与3∶3；堆肥后相对全氮含量较堆肥前均有所增加，且4.5∶3与6∶3处理要显著高于2∶3与3∶3，但前两者绝对氮损失率要高于后者。考虑到为将两种废弃物同时最大化处理并取得较好的堆肥效果，建议城市污泥与园林绿化废弃物采用质量比4.5∶3的比例混合共堆肥。%In order to promote the reduction and resource utilization of organic wastes in city , the composting effects with different proportions of sewage sludge and green plant wastes were studied .It was shown that different propor-tions of sewage sludge and green plant wastes significantly influenced composting effects .Compared with the treat-ments with ratios of 2∶3 and 3∶3, the treatment with ratios of 4.5∶3 in sewage sludge and green plant wastes promo-ted the temperature advancements , increased the maximum temperature and prolonged the high temperature period . Dissolved organic carbon and organic matter decreased in composting , and the degradation of treatments with ratios of 4.5∶3 and 6∶3 was significantly higher than those of 2∶3 and 3∶3.The relative content of total nitrogen accumulated after composting , and the accumulation of treatments with ratios of 4.5∶3 and 6∶3 were significantly higher than those of 2∶3 and 3∶3.However, the loss amount of absolute nitrogen in former treatments was higher than those of 2∶3 and 3∶3.Thus, the treatment with ratio of 4.5∶3 in sewage sludge and green plant wastes was suggested for the compos-ting to maximize the treatment amount of both kinds of wastes and to get better composting effects .
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