- Costa Rica(3)
- New Zealand(1)
- Republic of Korea (South Korea)(1)
- Russian Federation(3)
- South Africa(1)
- Sri Lanka(2)
- United States of America(2)
EM Mudball treatment of Amur BayVladivostok, Russian Federation
OverviewAmur Bay in the Far-Easten seas is located near Vladivostok, and is known for its industrial area. The size of the bay is 35,000km2, 3m deep.
One of the pressing problems of the bay, especially in its northeastern part, is the inflow of pollutants in domestic wastewater from Vladivostok's coastal enterprises.
In 2013, the volume of wastewater entering the Amur Bay amounted to about 46million m3 per year (61% the wastewater was untreated or insufficiently treated).
EMRO's partner in Russia, Primorskiy EM-Center, together with the Rostok public organization and the volunteers from the Department of Ecology, the Far Eastern Federal University, prepared more than 30,000 EM Mudballs on July 11, 2016. Then, the mudballs were thrown into the bay on July 18.
The Bay was monitored for 3 months (July-September 2016):
1. Somov Research Institute of Epidemiology and Microbiology in Vladivostok carried out the sanitary and microbiological control of the sea water quality. Samples were taken from 3 points of the bay, once in every 10 days.
2. Sanitary-chemical analysis was carried out by the sanitary-epidemiological station of Vladivostok. The water and bottom sediment samples were taken monthly from 2 points.
3. Gas-geochemical studies of sea water and bottom sediments were carried out by the Pacific Oceanological Institute. Bottom sediment samples were taken monthly from 2 sites.
30,000 of EM Mudballs were thrown into the Bay and the sea water quality was monitored for 3 month.
Effects and Results
The results of microbiological studies of sea water after using EM Mudballs showed a significant decrease in concentration of enterobacteria, especially common coliform bacteria and coliphages.
Based on the dynamics of changes in nitrate and ammonia content in bottom sediments from the points investigated in this project, compared to the points investigated in the past, it can be concluded that the process of destruction of organic matter in bottom sediments has become more active.
For further information, please contact our partner in Russia:
OOO Primorskiy EM-Center
Mordovtseva Str, 8D, Vladivostok 690091 Russia
TEL: 8-800-333-65-95 (free call)
(Updated in October, 2020)