The Palace STP plant is located in Obhour District, Jeddah, Kingdom of Saudi Arabia. The palace is owned by the president of Jeddah chamber of commerce with the population of 380. The STP plant used two sets of integrated sewage treatment & reuse packages of international patented SPRAS technology. The plant capacity is 400m3/day, which is completed in April, 2015. The effluent water can meet the standards and requirements of irrigation, car washing, greenery and toilet flushing. The STP plant runs in excellent performance conditions, no need to add any chemicals or reagents and no sludge, which is highly appreciated by the owner and government.