A strong closed vessel, in which bones or other substances may be subjected, usually in water or other liquid, to a temperature above that of boiling, in order to soften them.
A vessel or tank in which organic or chemical reactions take place under controlled conditions. Digesters are used in sewage treatment plants.
a large container where wood is pulped or "cooked" using chemicals, heat and pressure.
Pressure vessel for chemical treatment of chips and other fibrous materials like straw bagasse rags, etc., under elevated temperature and pressure to separate fibers and produce help.
autoclave consisting of a vessel in which plant or animal materials are digested
a benefit to a dairy because produces profit from maure in the form of electricity and digested solids while reducing odor, manure viscosity and pathogens
a vessel in which microbes degrade waste
a waste treatment technology widely used for municipal and industrial waste treatment
vessel in which wood chips, rags or esparto grass are boiled with chemicals. It can be stationary or revolving, horizontal or upright, cylindrical or spherical.
A big tank that cooks wood chips and chemicals at high temperatures to separate the cellulose fibres
A tank or vessel used for sludge digestion.
A tank in which solid material removed from wastewater (including raw and/or waste activated sludge) is placed to allow for decomposition by micro-organisms. Digestion may occur under anaerobic or aerobic conditions. Reduction in levels of pathogens and volatile solids is achieved.
the tank in which digestion of wastewater sludge takes place.
An airtight vessel or enclosure in which bacteria decomposes biomass in water to produce biogas.
Closed vessel.for cooking fibrous feedstocks with solutions of various chemical liquors. See also: chemical pulping, cooking
an enclosed composting system with a device to mix and aerate the waste materials.
Pressure vessels in which wood chips are cooked to separate fibers from each other and to remove detrimental particles.
A pressure vessel, typically cylindrical, used to treat wood chips or other cellulosic materials with chemicals under elevated pressure and temperature, so as to produce pulp for papermaking.
Keitin Kokare The pressure vessel to treat pulpwood or other fibre raw material with chemicals to produce chemical pulp. The digester may be either of the batch or the continuous type.
a sealed container or tank, where the biological digestion can occur of animal manure and biogas formed
In wastewater treatment, a closed tank; in solid-waste conversion, a unit in which bacterial action is induced and accelerated in order to break down organic matter and establish the proper carbon to nitrogen ratio.
A device in which organic material is biochemically decomposed (digested) by anaerobic bacteria to treat the material and/or to produce biogas.
A digester is a device used in papermaking which takes small wood chips, and cooks them for a number of hours, to remove lignin. The softer chips are then passed on to a machine that bleaches them to the desired degree of whiteness.