Industrial water, wastewater treatment and reuse by reverse osmosis system back to an applied field of 1) water; desalination water treatment equipment. 2) factory farming raw water detoxification treatment; 3) power plants, chemical plants and other large cooling circulating water next to the filter system; 4) oilfield produced water reuse treatment; electroplating wastewater treatment effluent. 5) rolling emulsion waste water treatment; Textile sewage wastewater treatment. 6) metal surface cleaning fluid regeneration treatment, metallurgy and other wastewater reuse.