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Chernomortransneft Builds Test Ground for Hydrobionts in Black Sea Water Area

Date of publication: 03 June 2021

Chernomortransneft has built a specialised test ground for hydrobionts to monitor the state of the aquatic environment of the Black Sea water area.

The site for biological test objects was located within the boundaries of the port of Novorossiysk, at the berth No. 1. Divers attached 2 hydro-biotechnical structures to the berth supports.

300 giant bivalve oysters were placed into special grounds at a depth of 6-9 metres. Headers for settling mussels were also installed; in total, 900 mussels were planted on the structure. For the growth of green algae (Ulva rigida) and brown algae (Cystoseira barbata), a specialised net was stretched on tent parts of the bench. The planting material was selected from mariculture farms at the Bolshoy and the Maly Utrish capes in Anapa District.

Oysters and mussels accumulate water pollutants in their tissues and are in fact sensitive bio-indicators. Analysis of hydrobiont samples will allow to accurately assess the effectiveness of environmental protection measures implemented in the port, including wastewater treatment at the Sheskharis Transshipment Complex (TC). Every six months, aquatic organisms will be examined for the content of petroleum products in their tissues.

The site for test objects meets the environmental requirements established by technical regulations and the environmental safety legislation.

This is the third project of this kind implemented by Transneft in seaports. Biological test objects for seawater monitoring were first introduced at the port of Kozmino (Primorye Territory) and later at the port of Primorsk (Leningrad Region). Bioindication methods were successfully tested and allowed to monitor the environment state by hydrobionts analysis. Practice has shown the effectiveness of this method in assessing and controlling possible industrial pollution and, by analogy, was introduced at the port of Novorossiysk.

Chernomortransneft pays great attention to environmental protection and compliance with environmental legislation. On a quarterly basis, the Sheskharis TC environmental analytical laboratory performs routine environmental and analytical monitoring of seawater near deepwater outlets of production and storm, as well as utility waters treatment plants. In particular, the possibility of containing petroleum products, iron ions, nitrates, nitrites, phosphates, ammonium nitrogen is being checked.

Results of the analyses show that no exceedances of established norms have been detected and a high level of environmental safety of the Sheskharis TC has been ensured.

Treatment plants for production and storm wastewater at the Sheskharis transshipment complex are the largest facilities for oily wastewater treatment on the Black Sea coast of Russia. They purify wastewater to standards established for fishery reservoirs (700 m3/hour productivity).

A total of 12.5 thou environmental studies were carried out at Chernomortransneft’s operating facilities in Q1 2021, namely, analyses of soil, atmospheric air, waste and natural waters.