Wastewater Treatment potable and usable by using Wastewater Treatment technologies that filter and treat wastewater by removing pollutants such as fecal matter and chemicals.
Our modern lifestyle offers us the luxury of using a variety of products that make our lives more convenient and easier, but it comes at a price. A common byproduct of our current lifestyle is wastewater, for example in the form of water running out of the shower or running off a wet street. This wastewater is not fit for human consumption or use.
The four common methods of Wastewater Treatment include physical water treatment, biological water treatment, chemical treatment and sludge treatment. the processes are .
Physical water treatment
In this phase, physical methods are used to purify the wastewater. One of the most important physical wastewater treatment techniques is sedimentation, a process used to suspend insoluble/heavy particles from wastewater. Once the insoluble matter has settled to the bottom, the pure water can be separated.
Another effective physical water treatment technique is aeration. In this process, air is circulated through the water to oxygenate it. The third method is filtration, which filters out all impurities. You can use special filters to filter the wastewater and separate the pollutants and insoluble particles it contains. Sand filters are the most commonly used filters. Oil and grease on the surface of some wastewater can also be easily removed using this method.
1. Biological water treatment
. In biological treatment, microorganisms metabolize the organic matter in wastewater. It can be divided into three categories.
Aerobic processes. Bacteria break down organic material and convert it to carbon dioxide, which can be used by plants. Oxygen is used in this process.
Anaerobic processes. Here, waste is fermented at a specific temperature. No oxygen is used in the anaerobic process.
Composting. An aerobic process in which wastewater is treated by mixing it with sawdust or other carbon sources.
Secondary treatment removes most solids from wastewater, but some dissolved nutrients such as nitrogen and phosphorus may still be present.
2. Chemical water treatment
As the name implies, this treatment method introduces chemicals into the water. Chlorine, an oxidizing chemical, is typically used to kill bacteria that break down water by adding contaminants to the water. Another oxidant used to treat wastewater is ozone. Neutralization is a process in which an acid or base is added to bring the water to its natural pH of 7. The chemicals prevent bacteria from multiplying in the water, ensuring pure water.
3. Sludge treatment
This is a solid-liquid separation process designed to leave as little residual water as possible in the solid phase and as few solid particles as possible in the separated liquid phase.
Examples include dewatering sludges from industrial effluents or wastewater treatment plants, where the residual moisture of the dewatered solids determines the cost of disposal and the quality of the concentrate determines the contaminant load that must be returned to the treatment plant. You need to keep both to a minimum.
Our modern lifestyle affords us the luxury of using a variety of products that make our lives more comfortable and convenient, but it comes at a cost. A common byproduct of our current lifestyle is wastewater, for example, in the form of water running from a shower or running off a wet street. This wastewater is not fit for human consumption or use.
Fortunately, we can make wastewater drinkable and usable by employing wastewater treatment technologies that filter and treat wastewater by removing contaminants such as sewage and chemicals.
There are four common methods of wastewater treatment: physical water treatment, biological water treatment, chemical treatment, and sludge treatment. Let’s take a closer look at these processes.
4. Physical water treatment
One of the main techniques of physical wastewater treatment is sedimentation, which is the process of suspending heavy insoluble particles in the wastewater. As the insoluble material sinks to the bottom, pure water is separated.
Another effective physical water treatment is aeration. This is a process in which air is circulated through the water to provide oxygen. Filtration is the third method and filters out all contaminants. A special type of filter can be used to pass the wastewater through and separate the contaminants and insoluble particles in it. The common filter is sand filter. Oils and grease on the surface of the wastewater can also be easily removed using this method.
To remove solids from wastewater, a solid-liquid separator such as a centrifuge is used.
Since wastewater has a great impact on nature, it is important to treat it effectively. By treating wastewater, we not only save the life that lives in it, but we also protect the entire planet.
Jigar Patel, Business Development Director at Eastern Manufacturers, is a young and passionate businessman who believes in the power of functional design and how it can improve productivity and drive growth. Driven by his passion for innovative design and EPC in general, he regularly writes blogs and other topics related to process equipment manufacturing, turnkey solutions, industry best practices, and personal insights.