Global Wastewater Treatment Chemicals Market By Type (Coagulants & Flocculants, Biocides & Disinfectants, and PH Adjusters), By Application (Power Generation, Pulp & Paper, Textiles, Oil & Gas, Municipal Water Treatment, Industrial Water Treatment, and Industrial Water Treatment), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028