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The principles for selecting water treatment processes in water treatment

Released Date: Aug 26,2015 Article Source: Yuanlai Water Treatment
The water supply treatment process is based on the difference between the raw water quality conditions and the required water quality. It identifies the water quality indicators in the raw water that do not meet the water usage requirements, and selects one or several unit treatment processes to treat the items that do not meet the water quality indicators to meet the water usage standards. The principles for process selection in water supply treatment systems are technical feasibility, economic rationality, reliable operation and ease of operation. Meanwhile, the adaptability to changes in water quality and quantity and the resistance to shock are important contents of process evaluation. The design and selection of water supply treatment process flow and main treatment structures mainly adopt two methods: one is the pilot-scale method, and the other is the empirical method. The pilot-scale method is adopted because the quality of the raw water varies and the treatment processes are different. To make the system process meet the treatment requirements, it is necessary to optimize the process combination and process parameters, and understand the treatment effects of each influencing factor, so as to be accurate

The water supply treatment process is based on the difference between the raw water quality conditions and the required water quality. It identifies the water quality indicators in the raw water that do not meet the water usage requirements, and selects one or several unit treatment processes to treat the items that do not meet the water quality indicators to meet the water usage standards.

The principles for process selection in water supply treatment systems are technical feasibility, economic rationality, reliable operation and ease of operation. Meanwhile, the adaptability to changes in water quality and quantity and the resistance to shock are important contents of process evaluation.

The design and selection of water supply treatment process flow and main treatment structures mainly adopt two methods: one is the pilot-scale method, and the other is the empirical method.

The pilot-scale method is adopted because the quality of the raw water varies and the treatment processes are different. To make the system process meet the treatment requirements, it is necessary to optimize the process combination and process parameters, understand the treatment effects of each influencing factor, and thereby provide a basis for determining the system process. The pilot-scale method is particularly important for new process systems, mainly because there is less practical and engineering experience for new processes. The lack of experience in the combination of raw water and process has a wide range of impacts on the effluent quality of large-scale water supply systems, and the construction and operation costs are relatively high. Through pilot tests, a large amount of funds can be saved or engineering errors can be avoided.

The so-called experience-based approach refers to the design and operation experience of water treatment systems under ideal conditions, combined with local conditions, and determining the system process through technical and economic comparisons. The advantages of the experience-based approach lie in its high speed, low cost, and small wind direction.

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