Abstract
Intensive water consumption from surface sources leads to debit imbalance and high level of pollution, especially for wastewater discharges, including urban wastewater treatment facilities. Dissolved harmful and organic substances enter a large number of water bodies, which leads to harsh conditions for the survival of the rivers flora and fauna. A demonstrative indicator of environmental troubles is the intensive development of blue-green algae, which are a nutrient medium for cyanobacteria. Their productivity can be limited by hydromechanical capture. It is proposed to use a small-sized mobile vessel with a filter unit using replaceable cartridges and a pump. As a filter material, it is recommended to use crushed reeds. This technical solution allows the environmentally safe disposal of biomass, saturated with phytoplankton and heavy metal ions that are effectively absorbed. An equation of the distribution of concentrations of blue-green algae over the distance measured from the water surface is provided. The calculated data obtained from the proposed dependence allow us to determine the required level of immersion of the suction probes. The optimal time period in days for the operation of filtering units during summer season was revealed.
Highlights
The urgent problem for metropolises and large cities, especially with powerful industrial centers, is the low quality of water resources
Given the low efficiency of technological treatment cycles, wastewater entering in large volumes into rivers or reservoirs significantly worsens the quality of the habitat required to preserve the species diversity of river flora and fauna
Wastewater quality indicators must be achieved at biological treatment plants so that the impurities contained in them would not cause damage to water bodies and thereby ensure the safe use of surface sources for industrial, domestic and fishery needs
Summary
The urgent problem for metropolises and large cities, especially with powerful industrial centers, is the low quality of water resources. A completely different situation occurs when using the resources of water bodies running through the territories of regions with a high population density. The current trend of intensive consumption of water resources, along with the imbalance introduced, causes pollution of surface sources by wastewater discharge after treatment facilities. Given the low efficiency of technological treatment cycles, wastewater entering in large volumes into rivers or reservoirs significantly worsens the quality of the habitat required to preserve the species diversity of river flora and fauna. Wastewater quality indicators must be achieved at biological treatment plants so that the impurities contained in them would not cause damage to water bodies and thereby ensure the safe use of surface sources for industrial, domestic and fishery needs
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
