Yu. V. Litti, E. A. Botchkova, D. V. Serdyukov, V. V. Chekashev
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Structure of the Microbial Community of the Biological Wastewater Treatment Plant of a Pig Farm and Storage Pond
A primary study of the quality of wastewater treatment and the composition of the microbial community of the activated sludge of the treatment plant and the storage pond of a pig farm is carried out. Activated sludge is widely represented by nitrogen-cycle microorganisms, including denitrifying and nitrifying bacteria (Nitrosomonas (4%), Nitrospira (8%), as well as, to a lesser extent, anammox microorganisms (Candidatus Kuenenia (0.2%)). Phosphorus is removed by phosphate-accumulating bacteria, primarily Thauera (5%) and Candidatus Accumulibacter (1%). Two-stage aerobic treatment has a very high degree of chemical oxygen demand (97%) and ammonium (99.7%) removal. At the same time, a rather high concentration of nitrates (569 mg/L) and phosphates (75 mg/L) in the treated water probably caused the dramatic development of purple sulfur bacteria of the genus Thiolamprovum in the storage pond, coloring the water a red-burgundy color (“borscht” color). To improve the quality of treatment, reduce energy costs, obtain an energy carrier in the form of biogas, as well as solve the problem of water bloom in the storage pond, a scheme for anaerobic-anoxic-aerobic wastewater treatment of the pig farm is proposed.
期刊介绍:
Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.