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Applicant: Ecology and Environmental Management Chair of MSTU

OPTIMIZATION OF BIOLOGICAL WASTEWATER AFTERPURIFICATION BY USE OF WETLAND COMPLEX WITH HIGHER VEGETATION IN THE ARCTIC CIRCUMSTANCES. Applicant: Ecology and Environmental Management Chair of MSTU. Actuality of the project’s topic:.

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Applicant: Ecology and Environmental Management Chair of MSTU

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  1. OPTIMIZATION OF BIOLOGICAL WASTEWATER AFTERPURIFICATION BY USE OF WETLAND COMPLEX WITH HIGHER VEGETATION IN THE ARCTIC CIRCUMSTANCES Applicant: Ecology and Environmental Management Chair of MSTU

  2. Actuality of the project’s topic: • A serious problem in the wastewater treatment systems is the nitrogen and phosphorus mineral forms formation as the result of the microbiological organic oxidation in the treated wastewater. • One of the most effective, cost-efficient, and ecological method of nutrients extraction from the sewage is the usage of higher aquatic vegetation as an absorbing element. • Purification effect is reached due to the plants capability to absorb actively nitrogen and phosphorus mineral forms in the course of biomass growing. Nitrogen and phosphorus extraction is conducted while periodical mowing the grown plant biomass. • Further utilization of the gathered plant mass harvest makes for ecological orientation of this purification problem solving. • Higher vegetation usage for wastewater purification is a prevalent practice, but there is hardly a precedent of using this technology in the Arctic circumstances.

  3. The main objective of the project • to optimize the realization of this wastewater afterpurification technology for northern conditions.

  4. Methods • Project duration is two years • The works will be conducted on the base of the purification plant wetlands in the settlement Shonguy near Murmansk city. • Following activities are to be conducted during the project: • Testing area organization • Conducting of a number of experiments in order to search an optimal vegetable object, which has maximal indexes as a “biological pump”. It should have maximum growth rate and nitrogen and phosphorus concentration in tissues. • Conducting a set of chemical measurements of sewage quality during its purification and of the plant chemical composition

  5. Preliminary resultsBioplato management:

  6. Scheme of bioplato

  7. Nitrogen concentration in the phytomass

  8. Expected results • Elaboration of the wastewater afterpurification technology with the use of higher water vegetation in the Arctic circumstances in order to its further dissemination.

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