污泥堆肥的应用及其在农业中的发展趋势

污泥是污水处理厂剩余物，随着社会的发展，资源的紧缺，污泥作为堆肥原料已逐渐成为人们处理污泥的主要方式，即把污泥经过堆肥化形成的生物固体应用于农田、林地、草地、市政绿化、果树及蔬菜地，使严重扰动的土地逐渐恢复植被并促进土壤熟化。污泥因其含有大量有机质和氮磷钾等营养成分，是非常值得利用的肥源。此文综述了污泥堆肥农用的历史及现状，污泥堆肥化的原理和过程；并对污泥堆肥在农业、林业、蔬菜、花卉、果树以及土地修复重建上的应用做了详细介绍，指出污泥堆肥在农业中的发展趋势以及存在的问题。

Application and Development of Sewage Sludge Compost in Agriculture

Sludge is the remains of wastewater treatment plant. With the development of society and the lack of resources, the sewage sludge has become an important means of sludge treatment. The biosolids, which are formed by composting of sewage sludge, applied to farmland, woodland, grassland, municipal green, fruit and vegetable land, so as to restore vegetation on serious disturbance land and promote soil ripening. Sludge contains many organic matters which are well used as fertilizer. This paper mainly reviewed the history and present situation of sewage sludge compost on farm, the principle and process of sewage sludge compost, applications in agriculture, forestry, vegetables, flowers, fruit trees and land reconstruction as well as development tendency in agriculture.