Surface Water Treatment System

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For downstream water treatment or distribution system for municipal applications, pre treatment is necessary. While pretreatment it is must to ensure that water so treated becomes free from all sorts of suspended solid, organics,colloidal matter, iron manganese etc. The common pretreatment process and equipments that are generally used for surface water are:

• Micro-filtration

• Clarifiers (both solid contact clarifiers and inclined plate clarifiers)

• Filters

• Chlorination system

• Filters- Pressure and Gravity types

• Chemical feed system

For the better quality of water, various types of advanced membrane technologies like RO, NF (nanofiltration) are used for surface water pretreatment in order to provide potable drinking water to the locality. Similar techniques and equipments are used for pre treating municipal wastewater. Micro- filtration system is considered as the most advanced technology for treating municipal water. The municipal wastewater treatment follow the following sequence:

The conventional plants as compared to micro filtration occupies a small area thereby reducing required space and also cost of installation. This type of process is easy to operate and their maintenance is easy and cost effective.