50-3000 t/d cotton oil seed pre-treatment, pre-pressing, extraction, refining processing line. Business ... and pre-pressing, extraction, refining, oil materials including cotton seed, sunflower seed, rape seed, soybean, palm, peanuts rice bran and so on; ... from oil foots, waste cooking oil, vegetable oil and wild oil plants.8. Waste water treatment techniques in vegetable oil mills.. Cotton seed ...