Simple Wastewater Recycling System

Recycling and reusing treated wastewater is a common norm in our today’s society and it is the most practical approach towards solving clean and fresh water shortage crisis. To debunk the myth surrounding management of wastewater, most people frown upon the idea of getting into contact with treated and recycled water but however, little that they know that improvement in recent years on the recycling technology has produced treated wastewater quality good enough for daily usage such irrigation of crops, gardens and for washing and cleaning.

Recycling not only save and conserve precious fresh water for other more important purposes but it helps to preserve the environment avoiding building of dams to source for clean supply. Hence developing a Wastewater Recycling System offers a lot of benefits in the long run in terms of cost reduction, is an environmental friendly approach and it also provides a regenerable supply of water for common daily use. Let’s look at how all these can be done by referring to the following illustrated diagram that follows a simple step-by-step guide starting from wastewater generation up to the final discharge for usage.

wastewater recycling system process flow diagramA Simple Wastewater Recycling System can be easily set up by first channeling all the collected wastewater using a common collection system and then diverts it to the treatment reactors. Usually baffled reactor is the first in line in a series of treatment processes which helps to remove solid particles and sediments present in the wastewater before going for the next step. This is important because without it, various hazards might come along which will pose a lot of unwanted incidents such as choking in the pipeline, pump blockage and other process problems that will render the whole chemical treatment step to be ineffective. After wastewater has gone through this process, it will be channeled to the chemical treatment stage.

Microfiltration using membrane filtration technology is perhaps one of the most effective solutions that combine both chemical and physical processes together to further polish and remove common wastewater contaminants. Usually alum and other coagulants with binding properties are added in order to combine smaller particles to form larger molecules that will get trapped onto the porous membrane. This is the most common and widely used technology introduced and applied in almost every wastewater recycling system because it offers a safe and manageable solution that avoids a complicated and costly setup. Finally before discharge usually ozone or either chlorine is introduced as the final step to kill off bacteria and pathogens (although this may not be necessarily needed once it passes through microfiltration) so that the newly recycled wastewater is safe for usage.

A look at treatment options for wastewater generated from oil industries and a look at how the DAF (Dissolved Air Flotation) system can be applied to separate non-soluble oil from water.

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