NOVELTY - A gas treatment equipment comprises bioreaction tower (1) which introduces oxygen, gas containing biogas, odor gas or volatile organic compound, carrier filled layers filled with carrier adhered to microorganisms that decompose to-be-processed gas which is divided into divisions by separation wall, sprinkler structure (70) which intermittently sprinkles water to carrier filled layer, and control part (60) provided with water sprinkling algorithm which changes predetermined carrier filled layer used as water sprinkling material after predetermined time passes.    USE - A gas treatment equipment for anaerobic digestion treatment of organic wastewaters e.g. sewage and industrial wastewater, sewage and wastewater treatment process, and kitchen and waste material dump place of restaurant.    ADVANTAGE - The gas treatment equipment can always be driven by low pressure loss.    DETAILED DESCRIPTION - A gas treatment equipment comprises bioreaction tower (1) which introduces oxygen, gas containing biogas, odor gas or volatile organic compound, carrier filled layers filled with carrier adhered to microorganisms that decompose to-be-processed gas which is divided into divisions by separation wall, sprinkler structure (70) which intermittently sprinkles water to carrier filled layer, control part (60) provided with water sprinkling algorithm which changes predetermined carrier filled layer used as water sprinkling material after predetermined time passes, pressure detection part provided in each entrance side and each exit side of carrier filled layers which detects pressure of to-be-processed gas of each entrance side of carrier filled layers and pressure of to-be-processed gas of each exit side of carrier filled layers after passing carrier filled layers, comparison part which compares predetermined standard pressure value by reducing each exit side separate pressure corresponding to each entrance side separate pressure from each entrance side separate pressure, and quantity increase part which respectively corresponds to carrier filled layers and enables increase of amount of water sprinkling. The water sprinkling to carrier filled layers other than predetermined carrier filled layer stops while water sprinkling is performed. The signal is sent to quantity increase part corresponding to carrier filled layer when each differential pressure exceeds predetermined standard pressure value. The water sprinkling by which predetermined quantity increase is carried out is performed to carrier filled layer of quantity increase water sprinkling material based on signal. An INDEPENDENT CLAIM is included for a method of operating gas treatment equipment.    DESCRIPTION OF DRAWING(S) - The drawing shows an explanatory view of the gas treatment equipment. (Drawing includes non-English language text).    Bioreaction tower (1)    Feed water tank (20)    Control part (60)    Sprinkler structure (70)    Valve (75, 76)