Stages of Waste Water Treatment Process.
Both domestic and industrial processes leads to variety of waste including solids, water and gases. The wastes are absorbed into the environment and cab harmful, The harm made to the environment can, however, be reduced by taking waste through treatment plants. The waste treatment process produces harmless products such as water, recycled products and harmless, biodegradable products. The choice of treatment plant is dependent on the source and type of waste. Wastewater is common in most process including in homes and industries. The wastewater treatment process is carried out in three phases.
Most homes treat their water using the septic system The septic system is not complicated but should always be functional mode. 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 that can help you design and manufacture a treatment plant. A project plan is made according to the unique circumstances surrounding it. 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.
There are three main stages in the water treatment process. Water flows through pipes either by pumping or gravitational force to large reservoirs. In these reservoirs, there is removal of floating and suspending solids. The process involves use of centrifugal force. The process can remove the about 60% of the suspended solids. Chemicals can be used at times to increase the removal of solids. The water is taken to the second stage of treatment known as the secondary stage of organic stage. In the second stage, the remaining biodegradable and suspending articles are given as food to organism such as fish. The organisms consume the biodegradable components in the water and remove the phosphates and nitrates in the water. About 80% of water impurities is removed at this stage. The water that is released into the environment at this stage is not harmful.
The third stage is however introduced to make the water pure. It is referred to as the tertiary stage and water can be used for a wide range of uses. Various chemicals are applied to remove the impurities and ensure that it is safe. Chlorine is used by several firms though it have become a subject of debate in the recent.
When water is being pumped into the treatment plant; it should not contain industrial chemicals. The individual factory releasing such waters should take individual responsibility by establishing a treatment plant at their base before releasing such water.