Disinfection and biocides are used to control bacteria, viruses, algae, fungi, biofilms and other microorganisms in municipal and industrial water systems. The category includes chlorine-based disinfectants, chlorine dioxide, bromine compounds, ozone-related treatment products, algaecides and non-oxidizing biocides. Product selection depends on microbial load, contact time, water chemistry, system materials, residual requirements and potential disinfection by-products. Applications include drinking-water treatment, wastewater disinfection, cooling towers, membrane systems, industrial process water and recreational facilities. Manufacturers are developing more targeted formulations, automated feed systems and lower-residual treatment programmes to improve microbial control while limiting corrosion and environmental impact. Research coverage evaluates regulatory developments, product adoption, dosing technologies, competitive positioning, pricing trends and emerging demand for biofilm control and alternative disinfection chemistries.
