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Compulsory for installation Grease trap are where there is a sufficiently large amount of domestic wastewater contaminated with fats. As a rule, these are restaurants and canteens, supermarkets and confectionery cuisines — that is, enterprises involved in catering and food production and convenience foods.
At many large enterprises of the food industry since the times of the USSR, grease catchers or their cascades made in the form of concrete tanks can be used. As a rule, most of them have the same problem - concrete walls during such a period of operation begin to crack and the tightness of such tanks can be questioned. This means there may be a discharge of fat-containing waste directly into the ground, which contributes to the deterioration of the ecology of the environment as a whole. Of course, it is possible to restore these tanks by covering the concrete with special absorbable adhesive compositions or lining these tanks with plastics (if they have a monolithic structure), but all this is quite expensive and usually requires stopping the operation of the entire enterprise, which entails substantial losses.
Installation of plastic industrial grease traps on a single shop with the subsequent withdrawal of treated wastewater from it to the sewage system minimizes the loss of the reconstruction of this type of cleaning equipment.
The plastic industrial grease separator is a kind of preliminary cleaning system, which, due to its size and high performance, serves to remove fats from the wastewater of the enterprise (or plant) of fats before they are released into the general sewage system or into a septic tank. This is necessary in order to prevent the contamination of sewage systems and sewage treatment plants with grease - otherwise their work may deteriorate until they fail completely.
It must be remembered that for the effective operation of an industrial Grease Trap requires the creation of certain conditions. Thus, the temperature of the effluents entering the apparatus should be about 40 ° C. Removal of sediments and fats from the Zhiroulovitel should occur at least once every three months, regardless of whether the critical level has been reached - otherwise there is a danger of hardening of the sediment and fat crust. Maintenance of industrial, underground fat separators should be carried out with the help of aspenizer machines by special enterprises involved in the disposal of such grease drains.
Industrial Grease traps are actively used in the dairy and meat processing and confectionery industries, as well as in enterprises engaged in the production of such products as chips and snacks. For wastewater enterprises of this type is characterized by significant contamination with animal fats. Warm wastewater containing fats enters the sewage system, gradually cooling down the fat deposited on the walls of the pipeline, clogging them up and preventing the normal operation of the enterprise. Fats also interfere with the further processing of runoff at biological wastewater treatment plants. Therefore, as a rule, the first stage of treatment plants of enterprises of this type are industrial grease catchers, significantly reducing the fat content in wastewater.
Industrial grease traps can be made in elevated and underground forms. When above ground performance, industrial grease traps are made of reinforced or standard, but at the same time requiring the manufacture of a metal frame or concreting.
Underground execution requires mandatory tamping of the foundation pit in the case of clay soils or the use of a concrete slab if the soil is sandy, as well as the mandatory installation of a grease trap in concrete rings (brick lining is also possible). Thus, the Grease trap is installed in a kind of caisson, which protects the plastic sealed enclosure from soil changes and pressure.
In the case of deep sewage of sewer pipelines to which Grease trap is connected, it is recommended to install a concrete slab with a hole under the hatch wall of the caisson wall.
*The schematic diagram of the installation of an underground Gresae trap (fat separator) SLC series, manufactured by PolymerKomplekt as follows:
The use of industrial grease separators (industrial grease traps) in the production of dumping grease and oil-containing drains is mandatory!