منابع مشابه
Urban Wastewater Treatment: Past, Present and Future
1. Water Management Systems: A Brief History 1.1 Greco-Roman Influence on Water Management 1.2 Water Supply and the Industrial Revolution 1.3 Water Engineering in the 20 Century 2. Conventional Sewage Treatment Techniques 3. Third Generation Wastewater Treatment Systems 3.1 Facultative Ponds 3.2 Constructed Wetlands 3.2.1 Limiting Factors of Wetland Processes 4. Reassessing the Conventional Sys...
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The microbiological quality of effluents from different macrofiltration systems (pressure sand filter and disc filter) used as pre-treatment and membrane technologies (microfiltration and ultrafiltration) was evaluated in order to determine their possible application as alternatives to disinfection of urban wastewater prior to reutilization. Microbiological quality was determined by reference t...
متن کاملUltrafiltration membrane bioreactor for urban wastewater reclamation
A 162-day pilot-scale operation for reclamation of urban wastewater was studied by using an ultrafiltration membrane bioreactor (UMBR). Performance of the UMBR was investigated with a sludge retention time (SRT) of 5, 15, and 30 days, a hydraulic retention time (HRT) of 5 h, and membrane flux between 75 and 150 l m−2 h−1, respectively. It was observed that the highest sludge concentration in th...
متن کاملMulti-objective Control of Urban Wastewater Systems
This paper discusses the development of control algorithms for the urban wastewater system. This system is considered to comprise of sewer system, wastewater treatment plant and receiving watercourse. Since control actions are affecting the water quality in the river, river water quality based objectives, rather than conventional criteria such as overflow volumes or loads, are applied in this s...
متن کاملThe effects of silver nanoparticles on intact wastewater biofilms
Silver nanoparticles (Ag-NPs) have strong antibacterial properties, which may adversely affect biological wastewater treatment processes. To determine the overall effect, intact biofilm samples were collected from the rotating biological contactor at the local wastewater treatment plant and treated with 200 mg Ag/L Ag-NPs for 24 h. The biofilm uptake of Ag-NPs was monitored with transmission el...
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ژورنال
عنوان ژورنال: Linnaeus Eco-Tech
سال: 2017
ISSN: 2002-8008
DOI: 10.15626/eco-tech.2014.051