Municipal Water Treatment Process
Municipal Water Treatment also known as Sewage Treatment, which is the process of removing contaminants from waste water and household sewage, both run off, domestic, commercial and institutional. It includes physical, chemical and biological contaminants. Its main objective is to produce an environmentally friendly safe fluid waste stream and a solid waste which is suitable for disposal or reuse. Here in this post, Various Characteristics of Municipal Water Treatment with different sewage treatment process are explained.
Types of Municipal Water Systems
The general types of municipal water systems are:
1) Surface water
2) Ground water
SURFACE WATER: surface water consists mainly of lakes,ponds,rivers and streams. There are a total of 329 surface water supplies throughout the province with approximately 313 in active use. Characteristics of natural water are based on water quality, including the potential formation of THMs. among the natural factors hydrology, topography, geology, soil, vegetation, and climate are considered as key parameters to influence the water quality.
GROUND WATER: Ground water are those resources of water which lie beneath the earth surface. This water mainly consists of minerals and elements. it is enriched of various kind of elements. Municipal water treatment has been the backbone of our business since 1960’s. About water treatment or before treating water its type should be well known.
Sewage treatment Process: There are generally three stages primary, secondary and tertiary sewage treatment.
1) Primary Treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil , grease and lighter solids float to the surface. the settled and floating materials are removed and the remaining liquid may be discharged or subjected to secondary treatment
2) Secondary Treatment removes dissolved and suspended biological matter. secondary treatment is typically performed by indigenous, water-borne micro-organisms in a managed habitat. Sometimes secondary treatment requires a separation process to remove the micro-organisms from the treated water prior to discharge or tertiary treatment.
3) Tertiary Treatment is sometimes defined as anything more than primary and secondary treatment in order to allow rejection into a highly sensitive or fragile ecosystem ( estuaries, low- flow rivers, coral reefs). Treated water is sometimes disinfected chemically or physically ( for example by lagoons and microfilteration).
Questions and Answers on Municipal Water Characteristics and its Treatment
Ques 1: What is Municipal Water?
Ans: It means the total metered and estimated non metered, portable and non portable water supplied for municipal purposes.
Ques 2: Which type of water is good to consume i.e surface water or ground water?
Ans: Surface water is the best water to consume unless and until its portable and free from impurities. Ground water consists of many minerals and is also termed as hard water. but in some regions or in many parts of the country people consume ground water.
Ques 3: What is municipal water treatment?
Ans: It is the process of removing fine particles and many impurities both soluble and non soluble particles from the water.
Ques 4: How many types of treatment of municipal water are there?
Ans: There are three types of treatment of municipal water which are primary , secondary and tertiary.
Ques 5: Where can be the treated municipal water used?
Ans: The treated municipal water can be used for watering the plants, washing vegetables, in industries ,in cooling towers etc.
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