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污泥堆肥合理施用量確定方法
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Rate of Sewage Sludge Compost
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    摘要:

    根據(jù)重金屬不同形態(tài)的環(huán)境風(fēng)險引入毒性響應(yīng)系數(shù),確定污泥堆肥合理施用量。采用污染指數(shù)和地積累指數(shù)評價楊凌區(qū)污泥堆肥受重金屬污染程度。初步確定陜西省楊凌區(qū)污泥堆肥合理施用量為3.69t/(hm2?a),該方法突出了重金屬形態(tài)的重要性,彌補(bǔ)了以往對重金屬只進(jìn)行總量控制的不足。評價結(jié)果顯示,Cd是限制該地區(qū)污泥堆肥施用量的最主要元素。

    Abstract:

    According to toxic response factor of different forms of heavy metals, rational application rate of sewage sludge compost was determined. Pollution index and geoaccumulation index were used to evaluate contamination degree of sewage sludge compost. Rational application rate of sewage sludge compost in Yangling was 3.69t/(hm2?a). This method stressed the importance of the forms of heavy metals and made up for the shortage of only controlling the total amount of heavy metals in the past. Results showed Cd was the most important element to restrict application of sewage sludge compost in this area.

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康軍,張增強(qiáng),孫西寧,孟昭福.污泥堆肥合理施用量確定方法[J].農(nóng)業(yè)機(jī)械學(xué)報,2010,41(6):98-102. Rate of Sewage Sludge Compost[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(6):98-102.

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