• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of water reuse and desalination >Modeling of transport and transformation of synthetic wastewater in irrigated soils
【24h】

Modeling of transport and transformation of synthetic wastewater in irrigated soils

机译：灌溉土壤交通运输与转化的建模

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Scarcity of fresh water has led to use of low quality waters that were considered unsuitable for irrigation in the past. Mismanagement of irrigation with wastewater poses risks to deterioration of the hydraulic soil properties and pollution of groundwater. In order to study these concerns, synthetic wastewater was poured on steady-state flux one-dimensional aerobic sand columns and the results were analyzed. Four irrigation treatments with different levels of chemical oxygen demand (COD) were performed as a randomized complete block design with three replicates. Soil water content, electrical conductivity, water potential, and hydraulic conductivities were monitored. The CXTFIT code was used to inversely determine degradation constant and the transport parameters of the convective-dispersive equation (CDE). In all treatments the hydraulic transport properties remained constant. Conversely, the first-order kinetics degradation constant decreased in an identical way for all COD treatments. It is also concluded that if a primary treatment removes the solids, which is essential for drip irrigation, domestic wastewater, similar to our synthetic water and without toxic or pathogen elements, poses few risks for groundwater pollution.
机译：淡水的稀缺导致使用低质量水域，这些水被认为是不适合灌溉的。废水灌溉的管理不振造成液压土壤性能和地下水污染的风险。为了研究这些问题，倒入稳态通量的合成废水是一维需氧砂柱，并分析结果。用三种重复的随机完整块设计进行四种灌溉处理，具有不同水平的化学需氧量（COD）。监测土壤含水量，导电性，水势和水力传导。 CXTFIT代码用于反向确定对流分散方程（CDE）的劣化常数和传输参数。在所有治疗中，液压传输性能保持恒定。相反，所有COD处理的一阶动力学降解常数以相同的方式降低。还得出结论，如果初级治疗除去固体，这对于滴灌灌溉至关重要，国内废水类似，类似于我们的合成水和无毒或病原体元素，造成地下水污染的风险很少。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号