... and remove sludge Thin film evaporator has been used in the following field by evaporating for concentration, solvent ... : fruit juice, meat liquor, pigment, essence, spice, enzymatic products, lactic acid, xylose, cotn sweetener and potassium sorbate, etc. ... chemicals: lecithin, VE, fish liver oil, oleic acid, glycerol, fatty acid, waste lubricant, alkyl-amylose glycoside and ether-alcohol sulphate ...