XI Международная студенческая научная конференция Студенческий научный форум - 2019

Recycling industrial wastewater can increase profitability while helping to conserve water – an increasingly scarce and expensive commodity.The wastewater engineers at Everfilt design treatment systems to suit each client’s particular needs and operating conditions. Our manufacturing group then fabricates the system to your requirements. We deliver a turnkey system that includes all the components required to condition the wastewater for re-use.

Everfilt has over thirty years of experience in virtually every industry. Our broad base of experience and knowledge enable Everfilt to design cost-effective, practical wastewater treatment systems [1-2].

The steps needed to treat industrial wastewater, and the ways recycled water can be used effectively, depend on the substances present in the wastewater and the water requirements of a particular facility.

Deciding how best to use wastewater begins with a laboratory analysis of the substances present in the water. Everfilt engineers work with each client to specify the laboratory tests that should be performed. Once that information has been obtained, our engineers and the client:

Identify the various ways the water can be used in the specific facility

Identify the substances to be removed from the water to make it suitable for each use

Determine the process needed to re-condition the wastewater for each use

Estimate how much water consumption would be saved by recycling and calculate the annual cost of the water

Obtain a cost estimate for the required treatment system

Compare the cost savings of reduced water consumption to the capital and operating expenses of the treatment system to determine whether the investment in recycling is cost-effective [2-4].

The success of superchlorination-dechlorination system depends on putting enough chlorine in the water to provide a residual of 3.0 to 5.0 ppm. This is considerably greater than chlorine residual of 0.1 to 0.5 ppm usually found in municipal water supplies when drawn from the tap. A superchlorination-dechlorination systems consists of two basic units. A chlorinator feeds chlorine into raw water. This chlorine feed is stepped up to provide the needed residual. A dechlorinator unit then removes the excess chlorine from the water before it reaches the household taps. The chlorinator should be installed so that it feeds the chlorine into the water before it reaches the pressure tank. A general purpose chemical feed pump will do the job. The size and the placement of the dechlorinator unit depends on the type of treatment necessary. This will usually be an activated carbon filter. If pathogen kill is all that is required, a small dechlorinator can be installed at the kitchen sink.

References

1. Climate Change 2001. Synthesis report., Cambrige University Press, UK, 2003.

2. G. I. Marchuk, Mathematical Modelling in Environmental Problems Nauka, Moscow 1982.

3. G. I. Marchuk, Adjoint Equations and Analysis of Complex Systems, Kluwer Academic Publishers, Dordrecht, 1995.