The difference between rainwater treatment and wastewater treatment
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3. What will happen to the water treatment plant?
You may understand the basic difference between wastewater and rainwater. It may be more difficult to understand the difference between rainwater treatment and wastewater treatment in a town or urban environment. Rainwater may eventually enter the water treatment plant, but it does not pass through the sewer as you might think. Rainwater treatment and wastewater treatment methods are different. However, conventional domestic wastewater treatment does not mean that it enters the water body without treatment.
What is wastewater?
Wastewater is liquid from showers, washing machines, sinks, toilets, bathtubs, dishwashers, and other items that treat dirty water. The water enters the sewer or septic tank through the pipe. If it enters the septic tank, the sewage filter will prevent solids from entering the pipeline and cause blockages in the pipeline leading to the leaching site. The water entering the leaching site is naturally filtered through the soil, sand and bedrooms before entering the groundwater source. The remaining sludge and solids remain in the water tank and must be pumped out every three to five years, depending on the number of residents. For households and businesses in water supply areas with sewers, water enters the sewer system through the sewer. There it went to a wastewater treatment plant in the area. Conventional domestic wastewater treatment is to let the wastewater directly enter the wastewater treatment plant for cleaning, and then discharge it into the water body or storage tank.
What is rain?
Rain is rainwater, melting snow, and melting ice that occur after a storm or on a warmer day in winter or spring. In rural or wooded areas, water is usually absorbed back into the ground. In the city, you have pavement and concrete to prevent water from entering the soil. It has to go somewhere, so storm drains, ditches and pipes help to treat the water. People see the rain drain in the city and think it all flows into the sewer. The reality is that there are different systems for rainwater treatment and wastewater treatment. The difference between rainwater treatment and wastewater treatment is that after a storm or sudden ice and snow melt, the water you see pours into storm drains, enters the drainage system, and returns untreated water to rivers, lakes, streams, and ponds. One of the problems of the untreated water entering the water body in the conventional domestic wastewater treatment is that it is not cleaned. This water can absorb pollutants such as road salt, vehicle liquids, garbage, agricultural fertilizers and pesticides, and eventually enter the water. This will cause algae blooms and other phenomena to take over and pollute the water source, causing adverse reactions. People should take precautions to prevent these pollutants from entering storm drains or ditches. Rivers, lakes, ponds or other bodies of water may flow into the water treatment plant. For example, if your city takes water from a nearby lake and uses it as water for public businesses and households in the water area, the rainwater that flows into the lake will eventually reach the wastewater treatment plant. There, it will be cleaned, processed, and eventually enter homes and businesses through pipelines.
What will happen to the water treatment plant?
Collecting and pumping water is the first stage of the rainwater treatment and wastewater treatment plan. Sewage is collected through a screen and removed large objects. The size of the screen will change to capture smaller and smaller items. After that, let it settle in the grit chamber, where sand and other fine particles can settle. They were removed and sent to landfill. Waste water moves to the pond where sludge and solids are deposited and removed. Depending on the wastewater treatment plant, sludge and waste may eventually be heated to kill bacteria and process them into fertilizer. The remaining wastewater now enters the secondary treatment. At this stage, oxygen is added to the remaining wastewater in the conventional domestic wastewater treatment to encourage microorganisms to consume the remaining waste. By the end of this process, up to 90% of waste and chemical contaminants have disappeared. The rest is disinfected with chemical reagents and further processed to ensure that the chemicals used to disinfect the water are below the level recommended by the government. Some wastewater treatment plants use ultraviolet lighting to help complete this process. Once the water can be safely reused or a body of water, it will enter the storage tank and eventually reach local homes and businesses, or enter lakes, rivers, streams, etc. through pipelines.
After understanding the difference between rainwater treatment and wastewater treatment, do you need help designing a rainwater treatment and wastewater treatment system that helps protect your area in light of the existing situation? Does your inefficient wastewater treatment system need to be upgraded? Kintep has decades of expertise in designing and installing efficient wastewater treatment systems. Give us a call or send an email to learn more.
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