Wastewater Treatment systems rely on microbes to perform the function of the breakdown of sewage influent. These microbes live in the sludge of treatment plants and holding tanks. They digest the solids and breakdown various compounds. Some wastewater treatment systems are exceptionally efficient, others perform effectively soon after start up, but later stop performing as well.
The key to understanding how and why some wastewater treatment systems work well and others don't, is the need to understand what these microbes need to function. As mi ....etc

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Advanced technologies in water and wastewater treatment



Introduction
Conventionalwater andwastewater treatment processes have
been long established in removing many chemical and microbial
contaminants of concern to public health and the environment.
However, the effectiveness of these processes has become
limited over the last two decades because of three new
challenges (Langlais et al. 1991; Mallevialle et al. 1996). First,
Received for publication in Can. J. Civ. Eng. 2 ....etc

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BY: P.D.NITYA




Need For Low Energy- Intensive Methods For Treating Low Strength - Large Volume Wastewater (like sewage, industrial washwater, etc.)

1.1 Definition of Low Strength Wastewater

Typical composition of untreated domestic wastewater (influent) was defined using concentration levels as weak, medium, and strong. Weak, medium, and strong levels of BOD5 (mg/L) were identified as 110, 220, and 400, concentrations of TSS (mg/L) were identified as 100, 220, and 350, and concentrations of F ....etc

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TREATMENT OF DISTILLERY WASTEWATER USING MEMBRANE TECHNOLOGIES
Presented by
SANJAY KUMAR
(Roll No. 09318001)
Under the guidance of
Professor Anil Kumar Dikshit
CENTER FOR ENVIRONMENTAL SCIENCE AND ENGINEERING
INDIAN INSTITUTE OF TECHNOLOGY BOMBAY

INTRODUCTION
1.1 BACKGROUND
The purification of waste water from various industrial processes is a world wide problem of increasing importance due to the restricted amounts of water suitable for direct use, the high price of the purification and the necessity of utilizing the wa ....etc

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Membrane Bioreactor for Wastewater Treatment

Recent technical innovation and significant membrane cost reduction have pushed membrane bioreactors (MBRs) to become an established process option to treat wastewaters. The combination of membrane separation with a suspended growth bioreactor is now widely used for municipal and industrial waste treatment (Judd, 2006). When used with domestic wastewater, MBR processes could produce effluent of high quality enough to be discharged to coastal, surface or brackish waterways or to be reclaimed for u ....etc

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Introduction to Wastewater Treatment Processes
Wastewater treatment is closely related to the standards and/or expectations set for the effluent quality. Wastewater treatment processes are designed to achieve improvements in the quality of the wastewater. The various treatment processes may reduce:

Suspended solids (physical particles that can clog rivers or channels as they settle under gravity)
Biodegradable organics (e.g. BOD) which can serve as food for microorganisms in the receiving body. Microorganisms combine this matter with oxy ....etc

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