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Chemical Cleaning of Industrial Water Systems

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Chemical Cleaning of Industrial Water Systems
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Open: Chemical Cleaning of Industrial Water Systems

Chemical cleaning of water systems can be divided into two classifications: pre-operational and remedial. Pre-operational cleaning is performed to prepare the water-contacted metal surfaces to receive chemical treatment, which provides protection from scale, corrosion, and microbiological growth. Remedial cleaning is performed to restore water systems that have been fouled with scale, corrosion products, and microbiological growth due to inadequate or ineffective water treatment. Cleaning, particularly remedial cleaning, is often performed by outside contractors familiar with cleaning procedures, techniques, and safety.

• General Guidance
• Pre-Operational Cleaning
• Remedial Cleaning Procedures
• Safety and Environmental Issues
• Contracting Cleaning Services
• Reasons for Cleaning
• Types of Deposits
• Waterside Deposits Located in Heat Exchangers
• Boiler Deposits
• Cleaning Methods
• Hydrochloric (Muriatic) Acid
• Carbonate Deposits
• Phosphate Deposits
• Metallic Oxides
• Remedial Cleaning Procedures
• Developing a Water Treatment Program
• Reports and Audits
• Glossary