After operation is conducted to sand and water mixture, the purpose to separate sand and water can be achieved through APW WARS Plus (Waterjet Abrasive Removal System Plus Water Recycling). Water after separation can be reused to avoid waste and realize environmental protection, energy saving and cost saving. The main principle of WARS Plus is to have sand and water mixture separated through centrifugal force. Water after separation can be recycled for use. Abrasive after separation can be stored in a fixed container for waste recycling.