Earth is full of abundant resources amongst which water is one. Waste water management and water conservation techniques have become a necessity due to the rapidly decreasing water availability, which poses a serious threat to the earth. The improving technology calls for us to adopt ways in which we can conserve and treat waste water, much of which is going to help us in the present as well as the subsequent generations in our quest for sustainable development. In order to sustain life, humans that mean us need energy that we get from sun and water.
The water crisis has hit us hard right when least expected. It has been a persistent problem in several parts of the world because of pollution, ignorance and sometimes natural causes like draught in countries lying on or around equator.
As we look for ways to solve the crisis, wastewater treatment companies in middle east like Alpha Utilities management have achieved major breakthrough. Although such projects are also used by government at large scale to prevent the wastewater to enter the natural water stream but not all of them have the objective to make it fit for human consumption back again. Several NGOs and philanthropists have taken initiatives to purify waste water into drinkable water.
A wastewater management project has a few stages including:
Preliminary: In this stage the first thing to do is screening for coarse and solid objects such as grits, rocks and other inorganic materials that may or may not include the trash which is filtered with the help of coarse screening and grit removal methods. The reason why removal of these materials is necessary is because it improves the stability of operations and easier maintenance of forthcoming treatment units.
Primary: after the preliminary screening has sorted out the coarse objects, the next step is effluent is passed on to sewage treatment units. At primary stage 25-50 % of the BOD5 – biochemical oxygen demand present in incoming effluent, 50-70 % of the suspended solids, almost 65% of the oil and grease composite of the sludge are separated as the challenge is the removal of organic and inorganic solids through the sedimentation process.
Secondary: the secondary stage in the waste water treatment is also known as activated sludge process where the suspended solids and the remaining organics are removed from the wastewater. This is done primarily with the help of aerobic biological treatment processes which usually involves bioorganic material like bacteria to help in process of break down the sludge. Bigger companies like Alpha utility development services use a much more complex treatment process which includes Trickling Filters and Rotating Biological Contactors.
Advanced: separate treatment processes are necessary to remove some of the elements of the waste that are not removed in primary and secondary stage like nitrogen, phosphorus, suspended solids, heavy metals and dissolved solids.
Alpha Utlities 