Preliminary Research on Application of Sewage Sludge for Water Retention

Chen Xiao-rong; Xun Kun-jun; Wang Jun; Liao Zong-wen

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Preliminary Research on Application of Sewage Sludge for Water Retention

- Preliminary Research on Application of Sewage Sludge for Water Retention
- Bulletin of Soiland Water Conservation Vol. 30, Issue 5, Pages: 200-203(2011)
- 作者机构：
  
  1. 华南农业大学资源环境学院
  2. 广州市园林科学研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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Chen Xiao-rong, Xun Kun-jun, Wang Jun, et al. Preliminary Research on Application of Sewage Sludge for Water Retention[J]. Bulletin of Soiland Water Conservation, 2011, 30(5): 200-203.
DOI：

Chen Xiao-rong, Xun Kun-jun, Wang Jun, et al. Preliminary Research on Application of Sewage Sludge for Water Retention[J]. Bulletin of Soiland Water Conservation, 2011, 30(5): 200-203. DOI：

摘要

污泥的透水性差

难以干燥是污泥资源化利用的技术障碍。可以利用污泥的这一特性

开发污泥保水的新功能。以土培及玉米盆栽研究污泥不同含量与在土壤中不同放置方式的保水效果

对土培的含水量、失水量及失水率

盆栽土壤水分含量及植株生物量进行了系统分析。污泥含量高的处理有一定保水效果但不及保水剂处理

而其盆栽结果却优于保水剂处理。污泥在土层的不同放置试验表明

在土壤中层状放置的土培及盆栽试验结果均优于全层混合

且双层的效果最优。污泥具有较强的保水性

是有待开发的新功能。与在土壤合适的放置方式结合

可更好地发挥其保水潜力。

Abstract

Sewage sludge may be exploited as water retaining agent owing to its characteristics of low water permeability and drying rate

which were considered as the technical barrier of sewage sludge application. Plot and pot culture of corn were conducted in the experiment to study the influences of different content and placement of sewage sludge on water retention.Water content

water loss and water loss rate in plot culture together with soil water content and plant biomass in pot culture were measured and analyzed systematically. The treatment with high sewage sludge amount had a significant effect of water retaining;sewage sludge had a better effect in pot culture and a worse effect in plot culture than the treatment of SAP(super absorbent polymer).Different placement of sewage sludge experiment showed that placing sewage sludge in a sandwich way was better than just mixing with soil.Especially

placing the sludge in two layers was superior.In summary

sewage sludge has a strong ability of water retention

which requires further investigation.

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