Principles for formulating anti-corrosion plans for wastewater treatment systems
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Principles for formulating anti-corrosion plans for wastewater treatment systems 1. Requirements for anti-corrosion materials in wastewater treatment systems (1) The coatings should possess excellent comprehensive properties, including physical and mechanical characteristics, resistance to chemical agents, and suitability for application processes. (2) The paint types should be advanced and new, but it is important to know whether they have good performance. (3) It should have a long service life based on economic efficiency, achieving good overall benefits. 2. Criteria for selecting anti-corrosion materials: (1) Drawing on the experience of using anti-corrosion coatings in sewage treatment projects at home and abroad. (2) Domestic paint varieties with excellent comprehensive performance. (3) Comply with relevant design standards and specification manuals. (4) Actual requirements of the user unit. 3. Principles for comprehensive evaluation: When selecting anti-corrosion materials based on the environmental conditions of the wastewater treatment system, a comprehensive assessment should be carried out considering the following operating conditions: (1) Atmospheric environment: weather resistance, salt spray resistance ； Corrosion resistance ； Shiny, somewhat decorative, and easy to clean ； It has good physical and mechanical properties as well as excellent workability. (2) Liquid phase: Corrosion-resistant ； water resistance ； It has good physical and mechanical properties as well as excellent workability. (3) Alternation of dry and wet conditions: Prioritizing requirements for the liquid phase, combined with weather resistance in the gas phase.
The principles for formulating a corrosion prevention plan for wastewater treatment systems should be: selecting corrosion-resistant materials with excellent physical and mechanical properties, strong resistance to chemical agents, and good construction characteristics； Choose materials that are cost-effective, have a long lifespan, and offer good overall performance ； Drawing on domestic and international experiences, relevant standards, and the requirements of end-users ； The performance of materials is comprehensively evaluated based on the different wastewater treatment environments (gas phase, liquid phase, and wet-dry alternation). .
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