Stages of Waste Water Treatment Process.
There is release of variety of waste from both domestic and industrial such as water, solids and gases. The wastes are absorbed into the environment and cab harmful, However, if the wastes are taken through treatment plants, the amount of harm done to the environment could be minimal. The waste treatment process produces harmless products such as water, recycled products and harmless, biodegradable products. The processes involved in the treatment of these wastes differs depending on the source and the type of waste. Wastewater is a produced in typical all process including homes and industries. The wastewater treatment process involves various stages.
Most homes treat their water using the septic system The septic system is simple and should always be functional. However, septic systems serving large populations are complex since they have to absorb lots of waste. There are however waste water treatment plants for use in large residential estates and factories. There are manufacturers of wastewater treatment plants and can assist you in design and construction of wastewater treatment plants. The process needs to be carried out per the circumstances. The manufacturers have engineers who handle the project since its inception to monitoring and maintenance works. These systems are complex and require large capital outlay. The output of the system is high grade usable water hence is used at commercial levels.
The wastewater treatment plants involve three main stages. Water flows to reservoirs either by pumping or gravitational force. In the reservoirs, there is separation of floating and suspending solids from the water. The process involves use of centrifugal force. The stage removes about 60% of the suspended solids. Removal of solids can be increased through addition of chemicals. The water is then directed to the second phase also known as secondary stage or organic stage. In this phase, the remaining biodegradable particles are provided as food to controlled organism such as fish. These organisms consume the biodegradable components in the water and remove the nutrients such as phosphorus and nitrogen present. About 80% of water impurities is removed at this stage. Water released to the environment at this stage is not harmful.
However, to make the water pure, the third stage is incorporated. This phase is known as tertiary level, and the water released here can be used for different purposes. Various chemicals are applied to remove the impurities and ensure that it is safe. Some firms use chlorine to remove all impurities though it has become a subject of discussion in the recent.
When water is being pumped into the treatment plant; it should not contain industrial chemicals. The company responsible for releasing water with industrial chemical should take responsibility by establishing a treatment plant at their base to remove the chemicals.