Domestic wastewater must be treated before it is finally discharged.This waste treatment must go through several important stages.Waste treatment with the Savage Treatment Plant or STP is widely applied in apartments, buildings, hotels, markets, hospitals, schools and so on.The installation of STP waste treatment is designed with Mild Steel concrete buildings to fiberglass tanks.It is necessary to know how STP Biotech works so that you understand how to treat domestic liquid waste using STP Biotech.The number of STP Biotech sellers makes us have to be smart in choosing a trusted seller, because by choosing the right seller, we will be able to deal with environmental pollution more quickly due to home or company waste.PT Surya Utama Fibertek offers STP Biotech which can process domestic waste from toilets, human waste, to used bath water into environmentally friendly water that can be reused or disposed of into city drains.Directly, this will reduce water pollution caused by wastewater originating from household waste, industrial waste, and domestic waste generated by apartments, malls, offices, and other large buildings.1. Screening Stage or Initial Screening With Media ScreenAt the initial stage, the waste to be treated must pass the screening stage.It aims to filter the solid material flowing through the wastewater.Thus, the waste treatment process is easier, more efficient and maximum.In carrying out this process, we must know about the characteristics of polluted water.This requires proper filtering tools.For the layer, it can be made in two layers so that it can filter particles or solid impurities to the maximum.In this second stage, the runoff water from the initial sediment chamber or screen flows and is treated by biological aeration with air blowing from the blower to reduce the BOD, COD load on the effluent.At this stage the wastewater enters the anaerobic room which contains a biofilter media.The biofilter functions as a media for filtering waste water through this medium.As a result, wastewater containing suspended solids and E.coli bacteria after passing through this filter will decrease in concentration.The filtering efficiency will be very large because with an up flow biofilter, namely filtering with a flow system from the bottom up, it will reduce the velocity of the particles contained in the waste water and the particles that are not carried by the upward flow will precipitate at the bottom of the filter basin.This up flow biofilter system is very simple, easy to operate and without the use of chemicals and without the need for energy.This process is suitable for treating wastewater with a capacity that is not too large.Inside this aerobic space is filled with media made of honeycomb type plastic material, while being aerated or blown with air so that the existing micro-organisms will decompose the organic substances present in the wastewater and grow and stick to the surface of the media.Thus wastewater will be in contact with micro-organisms suspended in water or attached to the surface of the media which can increase the efficiency of decomposition of organic substances, detergents and accelerate the nitrification process, so that the efficiency of ammonia removal becomes greater.This process is often called contact aeration.In this 5th stage, the water is again filtered with an anaerobic biofilter to maximize and reduce the water load so that the levels of BOD, COD, TSS in the water decrease.Sedimentation is a unit operation to remove suspended matter by gravity.The sedimentation process in wastewater treatment is generally to remove suspended solids before further processing.At this stage the wastewater will be treated with chlorine to kill harmful germs so that the waste water from STP BIORICH is not harmful to the environment.Those are some of the ways in which STP Biotech works that you should know to install STP Biotech.