Decentralized domestic wastewater management as unconventional water resource for agricultural purposes

Modeling for optimal management of agricultural and domestic wastewater loading to streams

A simulation/optimization (S/0) model to aid managing multiobjective wastewater loading to streams while maintaining adequate downstream water quality is presented. The conflicting objectives are to maximize the human and dairy cattle populations from which treated wastewater can be discharged to the river system. Nonindustrial municipal (domestic) wastewater undergoes primary and secondary tre...

Decentralized wastewater management – a Hanoi case study

Introduction Hanoi is currently undergoing a process of intensive industrialization and modernization. The population in the smaller Hanoi urban zone has risen dramatically from 300,000 in 1954 to its current population of more than 1.7 million which is 60% of the total population in the area of greater Hanoi. It is predicted that this will rise to 2.5 million amongst 4.5 million of total popul...

Hydrochemical assessment of Chehelchai river water, Golestan province for drinking and agricultural purposes

Background and Objective: Surface water is usually highly variable in chemical composition due to contact with different geological formationsand other surface and groundwater resources.  Knowledge on water quality and the impact of human activities are particularly important for sustainable management and planning of water resources. The aim of this study was to investigate the physicochemical...

Wastewater Management Strategy: centralized v. decentralized technologies for small communities

Feasibility of Using Dried Sudge from Wastewater Treatment Plant in Yazd for Agricultural Purposes Based on Environmental Protection Agency Standards

Introduction: One of the methods for disposal of sludge is its usage as fertilizer on agricultural. The purpose of this study was to analyze the possibility in the application of sludge to agricultural, according to environmental standards. Materials and Methods: This descriptive-analytic study was conducted for 12 months on dried sludge wastewater treatment plant in Yazd. Monthly sampling and...