Sewage or wastewater is the primary byproduct of our modern civilization. Factories and machine facilitated production rates are increasing. We are now producing more wastage than ever. It is alarming that almost all of the waste materials are going directly into our seas and oceans. Heavy chemicals and metal wastes are polluting our water reserve and also harming aquatic lives. For years people believed that increasing water pollution is not our headache at all. But now we have to rely on the last resort, and people understand the wrath of nature. Diseases, environmental disasters, and new abnormalities are getting normal. So, most of the countries and responsible business lines are getting conscious about their waste production. Effective sewage treatment is the call of nature nowadays. Here in this article, we will learn about the treatment process in detail. Please scroll down to get the brief discussion.
Table Of Contents
Sewage treatment process
The first step of sewage treatment is the screening process. Here we will declutter the complete sewage to a screening plant. Large screening plates will pick out the wooden particles, rags, plastic, and such. All non-biodegradable substances will come out at this step. It is the earliest and most crude stage of sewage treatment. So, we do not need very fine or sophisticated machines for this step until we are working on a large treatment facility. Then comes the second step of grit removal. Odour neutralising systems allow for the control of large and diffuse odours.
Grit removal
Grit is mainly the left out part of the sewage after the primary screening. It does not contain any crude or large material but fine impurities. You can use a fine screening cloth from bonfilt to remove all the remaining fine granules and dust particles. Bonfils is a dedicated company to create fine threads and cloths to facilitate the screening process. This company offers both natural and synthetic fibres for different works. You can avail of their service within a week or in the shortest time if you are a local. Currently, this company started overseas transportation of their products. It is a piece of good news for environmentalists worldwide. After you remove the last visible portion of the sewage, it is time to dispose of these parts to the landfill. Landfill production is an entirely different industry where you get the compost and other bio-degradable stuff. Then comes the stage of primary settling.
Primary settling
The name says about the process a lot. Here we will leave the sewage for quite some time to settle down. As a result, the heavy waste will settle down on the bottom of the tank, and the wash water will float above it. There are exit pipes on these tanks to pump the wash water out. Later the wash water will receive secondary settling and further treatment. Primarily we use the activated sludge method to dewater the sludge and treat the remaining water. Floating grease or charcoal is a problem here. High-class suction machines suck out the grease before pumping the water out of the tanks. Bonfils has several production lines to provide materials to dewater the sludge.
Activated sludge method
Here the wash water from the previous dirt comes to settle. Biological degradation starts and the bacterias help break down the products to create nitrogen, hydrogen, and such chemicals. These secondary clarifiers can act as an effective source of necessary chemicals too. Nowadays, several countries are trying this method of combining the waste disposal Industry with production lines. Bacterial degradation is quite similar to the natural degradation under the water bodies like ponds or lakes. But, it is faster and way more effective due to the presence of mechanical intervention. After completing the biodegradation, water goes for the secondary settling process.