Chemistry & service represents 57.0% of sales model sales and pretreatment accounts for 41.0% within the system stage segment in 2026. The ZLD chemicals market is estimated at USD 1,960.7 million in 2026, is projected to reach USD 5,273.5 million by 2036 and is forecast to post a 10.4% CAGR between 2026 and 2036.