... Boiler NecessityIt is estimated that the overall global production of hazardous waste is 330,Website:http://www.chinawasteheatboiler.com,000, ... gas, etc. The list goes on and on. The title "hazardous" is derived from the corrosivity, toxicity, ignitability, reactivity and ... of 1050 ℃ ~ 1100 ℃, and it usually contains toxic and corrosive substances ( e.g. heavy metals, salt, chlorides, and so on). Ergo ...