«RICC» Ltd. took part in the management of the project of construction of treatment facilities for food production.
Order of the project and photographic images of the process as follows:
The design capacity of the complex is 600 m 3 wastewater per day.
Engineering complex is unique not only for Ukraine, but also across the former Soviet Union. The uniqueness of the object is how to use the original technologies and engineering solutions, and in the pace of design and construction that have been implemented in a complex hydrological and weather conditions.
The adopted technological solutions are dictated, firstly, the nature of pollution of wastewater, as well as the requirements of environmental and health security, which in this case were severe. The proximity of ground water provided the most significant impact in the direction of increasing demands for quality cleaning. The limited size and remoteness of the construction site and, in particular, the disposal of any treated effluent discharge point, led to the need to find innovative solutions. As a result, the option of the technological scheme was adopted, which provides a deep cleaning of wastewater from being discharged within the work area.
To obtain permission for such a project it is needed to introduce two additional links in the chain of biological treatment process - in biopool and filtration of suspended particles in mechanical filters.
To ensure the necessary degree of purification and compact structures as the main element was adopted biotank block, where in contrast to the classical scheme of the module is used immobilization of microorganisms in activated sludge fibrous media.
High water table forced to abandon the earlier planned cascade of reservoirs of biological purification and replace them to a block of concrete aeriruemih pools.
For filtering treated wastewater into the ground station additional mechanical filtration was adopted .
Complex hydrogeological conditions of the site and stringent standards of environmental and sanitary safety required additional (compared to the usual conditions) increase of waterproofing main structures (layers of roofing material and the Euro-bituminous). It took the use of monolithic concrete structures reinforced with rebar (metal consumption is about 1.5 times more than the usual conditions).
To ensure reliability and long-term designs additional measures for corrosion of metal equipment and parts were adopted. More responsible among them were made of stainless steel. One of the most important elements - aeration system - manufactured by special order from a porous polyurethane, construction of which has increased strength and durability. Through dispersing nozzles of this system small-bubbled aeration and uniform air distribution along the length of the aeration tank are provided, which greatly contributes to the intensification of the process.
Distance of treatment facilities from companies that are the sources of waste water, forced to build a fairly long communication:
For the reliability of electrical supply (class 2):
The order of execution of the project:
Thus, despite the fact that the construction was carried out on the "quicksand" (sandy loam, clay loam, high water table) in a disadvantaged time (winter, early spring) under adverse weather conditions (frost, rain, snow), the facility was built in record short time - in less than 8 months. All the same period, including the design work is 10 months.