Mitsubishi Heavy Industries Limited

Mitsubishi Hitachi Power Systems, Ltd.

Mitsubishi Heavy Industries Engineering, Ltd.

Jun Satou

Susumu Okino

Nobuyuki Ukai

Toshihiro Fukuda

Seiji Kagawa

Yoshio Seiki

Atsuhiro Yukumoto

Yasumichi Aoki

Kazuhiro Kawai

Akira Noma

Hideo Suzuki

Naoki Ogawa

Naoyuki Kamiyama

Yoshito Tanaka

Hideaki Sakurai

Hiroshi Nakashoji

Kazuhisa Takeuchi

Shigeru Yoshioka

Takuro Soeda

A waste treatment systemfor performing a hydrothermal treatment of wastes includes a hydrothermal treatment devicefor performing the hydrothermal treatment by bringing steam into contact with the wastes, a storage facilityfor storing a fuel produced from a reactant of the hydrothermal treatment, and a heat recovery steam generatorfor generating the steam to be supplied to the hydrothermal treatment device. The heat recovery steam generatoris configured to generate the steam by using a combustion energy generated by combustion of the fuel stored in the storage facility

Waste treatment system and waste treatment method

A method of spray drying and washing using a spray drying apparatus, includes: spraying dehydrated filtrate from a spray nozzle hung down from a top side of the spray drying apparatus; introducing a part of flue gas into the spray drying apparatus to dry the dehydrated filtrate; wherein a compressed air is introduced into the spray nozzle to facilitate the spraying and into the wash nozzle to perform air purging during the spray drying, and jetting washing liquid from a wash nozzle provided on a side wall of the spray drying apparatus to wash the spray nozzle and an inside of the spray drying apparatus body, wherein the feeding of the dehydrated filtrate to the spray nozzle is stopped during the washing.

Method of spray drying and washing and method of controlling air pollution

A water treatment device () is provided with: a biological treatment tank () for storing a stored liquid (); a pump () for generating a circulating liquid flow formed of the stored liquid (); a gas-liquid two-phase flow generation device () for using the circulating liquid flow to suction a gas containing oxygen, whereby a gas-liquid two-phase flow in which the gas is dispersed in the circulating liquid flow is generated; and a nozzle () for injecting the gas-liquid two-phase flow into the biological treatment tank (). Such a water treatment device () is capable of adequately circulating the stored liquid () in the biological treatment tank (), adequately aerating the stored liquid (), and adequately treating the stored liquid ().

Water treatment device

Provided is an air pollution control system including: a denitration apparatus; an air heater; a precipitator; a desulfurization apparatus; a dehydrator; a spray drying apparatus provided with a spray unit that is configured to spray dehydrated filtrate supplied from the dehydrator; a flue gas introduction line through which a branch gas branched from the flue gas is introduced to the spray drying apparatus; a flue gas supply line through which a flue gas from the spray drying apparatus returns to a main flue gas duct; a solid content separator that performs a solid-gas separation on solid contents contained in the flue gas; and a kneader that performs kneading and immobilizing treatment on the separated solid contents together with an immobilization aid.

Air pollution control system and air pollution control method

Provided is an air pollution control system including: a denitration apparatus; an air heater; a precipitator; a desulfurization apparatus; a dehydrator; a spray drying apparatus provided with a spray unit that is configured to spray dehydrated filtrate as desulfurization wastewater supplied from the dehydrator; a flue gas introduction line through which a branch gas branched from the flue gas is introduced to the spray drying apparatus; a flue gas supply line through which flue gas returns to a main flue gas duct, the flue gas being obtained after the dehydrated filtrate is dried by the spray drying apparatus; and a powder supply apparatus that is configured to supply a powder to the flue gas introduction line.

Growing community of inventors

Tokyo, Japan

Jun Satou