Selection logic, retrofit economics and mother-liquor yield — articles from three lines: technology deep-dives on evaporator and crystallizer selection, application solutions for specific wastewaters and process duties, and anonymized project case studies. New articles are published continuously.
Technology ArticlesApplication SolutionsProject Case Studies
Representative configuration of a 4 t/h triple-effect forced falling film evaporation train concentrating chromium salt production wastewater at an inorganic-chemical plant in Chongqing, Southwest
Tryptophan fermentation finishing: chromatographic purification, deamination with ammonia water recovery, and dilute-feed (2.8-3 g/100mL) evaporation crystallization to a 58-60% slurry, centrifugation and drying.
Membrane-evaporation hybrid systems pair RO, UHP RO and MBR pretreatment with right-sized MVR evaporation for Minimal Liquid Discharge: 70x brine volume reduction, 99% water
Representative configuration of a 5 t/h three-effect forced-circulation train crystallizing potassium chloride from chemical-process brine, with steam economy of 0.3-0.5 t steam per tonne
Hybrid CaCl2 concentration: MVR below ~35%, multi-effect forced circulation to 55-60%, single-effect falling film finisher to 68%+ for flake and granule production. Proven on
How mechanical vapor recompression works: closed-loop latent heat recovery, nine core components, 20-35 kWh/t energy performance, compressor selection, temperature difference design, and fouling management.
Representative configuration of a 50 t/h four-effect falling-film train concentrating lysine solution with deammoniation duty at a major fermentation-industrial complex in Xinjiang, Northwest China.
Calcium chloride concentration and anhydrous granulation from soda ash distiller waste – high boiling-point-rise evaporation, spray granulation, 600,000 TPA reference practice.
Seven-step MVR evaporator selection: feed characterization, boiling point rise matching, configuration choice, MEE/TVR/MVR economics, materials of construction, scale payback, pilot validation and lead times.
Representative configuration of an 80 t/h lysine-production wastewater train in East China: MVR falling-film concentration with four-effect backup duty and MVR evaporating crystallization recovering
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