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What are two ways that the flow of water can be controlled?
One a dam, and two a filter
What is two problems that cities may face in disposing of solid waste?
air pollution and finding a suitable place to dispose of the waste.
How is waste water from the bathroom and kitchen treated before it is discharged into the sea?
It all flows to municipal treatment plants where it goes into a settling pond and the solids settle to the bottom of the tank, while black water flows into filters. Some form of aerobic action is used to reduce the bulk of the sludge, while the liquids are progressively filtered and disinfected to make them fit to be returned to the local environment as agricultural irrigation water or into rivers. The sludge, meanwhile is treated aerobically until it's literally eaten away by microbial action, in a succession of tanks. -This is only one type of system, there are many ways of handling this.In a public sewerage system, the largest sewers, called interceptors, carry the sewage to a wastewater treatment plant. Sewage treatment in most large cities involves two main steps, primary and secondary. Some cities require an additional step called tertiary treatment.Primary treatment removes the heaviest solid material from the sewage. At the treatment plant, sewage first passes through a screen that traps the largest pieces of matter. It then flows into a large sedimentation tank where many of the suspended solids sink to the bottom of this tank forming sludge. Grease floats to the surface, where it can be removed by skimming. Secondary treatment removes from 85 to 90 per cent of the solids and oxygen-consuming wastes remaining in sewage after it has undergone primary treatment. The most common methods of secondary treatment are the activated sludge process and the trickling filtration process. Tertiary treatment may include chemical treatment, microscopic screening and radiation treatment to make effluent safer to discharge into waterways or the sea.The water is sent through a waste plant where all waste and bacteria is removed and then filtered to make sure its clean and lastly add salt if its going to sea or a saltwater lake.It's treated just like all wastewater from homes, and is virtually never "discharged into the sea"Waste water is drained from the house through sewage pipes and collected at a sewage treatment plant.large solid waste is screen out then a chemical is added to cause the fine particles to attract to each other then its allowed to settle in a large tank then air is introduced to promote anaerobic bacteria to thrive its then filtered through sand filters chlorine is added then the water is safe to discharge
What are two way to change value of a css property?
There are not two but three ways to change. Inline, Internal and External CSS are three ways of changing CSS.
What are the two ways in which contact measurement can be made?
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When waste water clean is it really clean?
They are three types of waste water 1. Industrial waste water 2. Black water (Toilets) 3. Grey water (Domestic waste water) Out of those Black water is not treated and the remaining two are treated. Waste water is 99.9% pure and the remaining 0.1% constitute all the waste. While salt water is 95% pure. If we develop a suitable technology we can pure that waste water and can reuse . But up to date Grey water is cleaned by no of processes and the purified water is used for Gardening and Toilet flush
What are wo ways that liquid waste is removed from your body?
Two ways that liquid waste is removed from your body... sweating and urination
How does mammals excrete-?
Mammals excrete in two ways. One is waste goes through and out the anus and through chemical waste.
What are the advantages and disadvantages of two ways of dealing with high waste?
there are none
Why would you want to treat waste water?
There are two basic reasons why you need treatment of waste water: first, you love the environment, and second, you are concerned about your health. Treated waste water is excellent for the fisheries and it provides a good habitat for both marine plants and animals. And if you enjoy getting together for a picnic or a good swim in a river or lake, the purified and filtered water ensures that you don't get sick after with various diseases.
What are two ways carbon from animals into the water?
While they are alive, carbon returns from animals into water through waste products from respiration and defecation/urination. Another way when they are dead is from decaying remains.
What are two ways carbon returns from into the water?
While they are alive, carbon returns from animals into water through waste products from respiration and defecation/urination. Another way when they are dead is from decaying remains.
What are two waste products common to plants and animals?
Two waste products common to plants and animals are carbon dioxide and water. However, only plants that photosynthesize in the dark have water as a waste product.
What are two ways that waste water is treated before it can be released?
( Only if it goes into a main sewer ). First, the solids are removed by filters and settling tanks. Then, the liquid is oxygenated to remove bacteria. When it is around 90% pure (pure enough to drink), it is discharged into the local water course to be used again or else it would make its way into the sea.
What are the advantages and disadvantage of two ways of dealing with high-level waste?
there are none
What are two ways into the water carbon returns from animals?
While they are alive, carbon returns from animals into water through waste products from respiration and defecation/urination. Another way when they are dead is from decaying remains.
How many waste water plants are in the US?
two
