Adhering the priority of protective environment, Dafeng Yuelong Chemical Co., Ltd has established a technological system of environment protection and pollution abatement. The system combined the prevention from source, process control and end treatment together. Yuelong takes comprehensive measures on waste gas, waste water and solid waste. During the process, Yuelong has finished the research and establishment of 2 sets of RTO which realized the harmless treatment for the waste gas. Yuelong adopts the membrane treatment technology on the refractory wastewater coming from the process of production. This treatment doesn’t only improve yield of product, but also improve the effect of treatment for waste water. Waste solid handling apply the patent for invention of our own for comprehensive utilization and bring immeasurable economic benefits. The disposal technique for Tri-waste doesn’t merely improve the economic benefit for the company but also bring positive significance to constructing resources-saving and environment-friendly type society. Besides, Yuelong has started a series of researches for energy saving and consumption reducing, usage of new equipments which saved 40% based on the original energy consumption. Yuelong will take a road to the sustainable development.