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  Realnoe Vremya,  

Nizhnekamskneftekhim Invested Some RUB 600 Mln in First Stage of Treatment Facilities Reconstruction


The first phase of the first line linked with the large-scale reconstruction of the biological treatment facilities (BTFs) owned by Nizhnekamskneftekhim PJSC kicked off at the beginning of this year; this is an ecologically and strategically important facility for both the industrial enterprise and the city. Today, BTFs undergo leak tests and debugging of the equipment duties with involvement of the specialists of the equipment venodrs.

The initial capacity of the BTFs was 56 thousand cubic meters per day — that is almost 20 million cubic meters per year. The treatment facilities that have been in operation for 50 years already, since autumn 1966, were reconstructed once in 1980 to expand their capacity. As a result, the BTFs’ wastewater intake and treatment capacity grew four times up to some 210 thousand m3/day or nearly 80 million cubic meters a year. The current actual capacity is 190 thousand m3/day. Out of the total drains, 21% come from the city, and the rest — from the industrial zone, where the number of production sites, same as the city itself, grows every year.

Over the 50 years of BTFs operation, however, its equipment has become worn out and obsolete. Therefore, the company's management has decided to reconstruct and upgrade the treatment facilities. The main purpose of the reconstruction is to create comfortable living conditions for the residents of Nizhnekamsk.

Owing to construction of new treatment facilities, modernization of the equipment and quality improvement of the treatment technology on the territory, air quality and treated wastes discharged in the river of Kama will improve in the neighboring settlements and residential areas of the city. For instance, the volume of phosphates drained will decrease by 87%, ammonium ion - by 36%, and oil products - by 56%.

These targets will be achieved due to reconstruction of the domestic wastes and chemical effluents mechanical treatment units, switch-over from a single-stage treatment scheme to a two-stage one, improvement of the post-treatment unit as well as sealing of all the facilities, which wastes are routed to biotreatment through, and equipping them with 'Yatagan' burning units.

To date, the first phase of reconstruction of the domestic wastes mechanical treatment unit has been completed at BTFs, within the framework of which new environmental facilities have been built. They will allow catching suspended solids and trash of at least 5 mm size (earlier, grid gaps were 14 mm) out of wastes; preserving domestic organics as much as possible that will have a positive effect on concentration of sludge in aeration tanks, which, in turn, will improve the quality of the biological treatment. The task of Yatagans is to catch and neutralize the harmful and bad-smelling substances that escape during wastes treatment.

According to Andrey Rubezhov, Deputy Chief Engineer, Environment Protection, Nizhnekamskneftekhim, the company's capital expenditures for the first stage of reconstruction alone amounted to some RUB 600 million.

In 2017, Nizhnekamskneftekhim plans starting the second construction phase of the first start-up mechanical treatment facility, after evaluating the efficiency of the steps taken during the first phase.