A POLICY FOR SUSTAINABLE WASTE-WATER MANAGEMENT

Mrs Almitra H Patel, MS MIT (USA) 50 Kothnur, Bagalur Rd, Bangalore 560077 Member, Supreme Court Committee for Solid Waste Management in Class 1 Cities
Consultant, Ganga ICDP Kanpur, and Convener, INTACH Waste Network


ABSTRACT:

India needs to evolve its own set of criteria and policies for natural, low-cost, low-maintenance waste-water treatment systems that do not fail when there are daily and unscheduled power cuts, and do not incur prohibitiv ....etc

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Industrial wastewater treatment covers the mechanisms and processes used to treat wastewater that is produced as a by-product of industrial or commercial activities. After treatment, the treated industrial wastewater (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment. Most industries produce some wastewater although recent trends in the developed world have been to minimise such production or recycle such wastewater within the production process. However, many industries remain dependent on proc ....etc

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i want a ppt on electricity generation from waste water ....etc

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PLASMA TECHNOLOGY
FOR
WASTE TREATMENT
ABSTRACT
In Nature there is no such thing as waste. If it were not for the waste oxygen that plants produce, we would not have oxygen to breathe Part of the plan for re-using material from living things is to have it decompose(treat) so that it can be assimilated by another life form. These ideas opened the doors for the evolution of a technique called Plasma technology.
Plasma technology is not a new technology but its application for waste treatment, electricity generatio ....etc

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modern Wastewater Treatment Methods
& Disposal techniques
Satisfactory disposal of wastewater, whether by surface, subsurface methods or dilution, is dependent on its treatment prior to disposal. Relatively simple wastewater treatment technologies can be designed to provide low cost sanitation and environmental protection while providing additional benefits from the reuse of water.Adequate treatment is necessary to prevent contamination of receiving waters to a degree which might interfere with their best or intended use.
The whole ....etc

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STUDY ON REMOVAL OF CADMIUM FROM WATER ENVIRONMENT BY ADSORPTION ON GAC, BAC AND BIOFILTER



INTRODUCTION

Cadmium is introduced in to bodies of water from smelting, metal plating, Cadmium-Nickel batteries, phosphate fertilizer, mining, pigments, stabilizers, alloy industries and sewage sludge. The harmful effects of Cadmium include a number of acute and chronic disorders, such as itai-itai disease, renal damage, emphysema, hypertension, and testicular atrophy (1).
The drinki ....etc

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Waste Water Recycling & Re-Use



Wastewater

Wastewater (WW) is a
combination of the liquid, or
water carried wastes,
removed from domestic,
institutions, commercial and
industrial establishments
together with surface/ ground/
storm water.

Wastewater Treatment and Reuse
Some Key Safeguards for agricultural reuse
safeguard the health of people who eat produce grown in
recycled water, residents of neighborhoods near irrigated areas
Safeguard the health of o ....etc

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In this seminar the cadmium s effect on anti-oxidative enzymes in tomato (Lycopersicon esculentum) plants was evaluated. Plants treated with increasingly CdCl2concentrations (0, 20, 40, 80, 100 and 200 M respectively) were grown in a basic nutrient solution for 7 days. APX (Ascorbate Peroxidase) and GPX (Gua gol Peroxidase) activities showed to increase below 100 M concentration after treatment. In excessive concentration however, more than determined level, a significant decrease in the enzymes activities was determined. The increase in enzy ....etc

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Cadmium is a chemical element with symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Like zinc, it demonstrates oxidation state +2 in most of its compounds, and like mercury, it has a lower melting point than other transition metals. Cadmium and its congeners are not always considered transition metals, in that they do not have partly filled d or f electron shells in the elemental or common oxidation states. The average concentration of cadmium in Ea ....etc

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The problem

The principal objective of wastewater treatment is generally to allow human and industrial effluents to be disposed of without danger to human health or unacceptable damage to the natural environment. Irrigation with wastewater is both disposal and utilization and indeed is an effective form of wastewater disposal (as in slow-rate land treatment). However, some degree of treatment must normally be provided to raw municipal wastewater before it can be used for agricultural or landscape irrigation or for aquaculture. The quality of ....etc

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