Utilization of Microalgae in Aquaculture System: Biological Wastewater Treatment

Abstract

We recently developed an autotrophic biofloc technology (ABFT) system entailing simultaneous microalgae co-culturing with juvenile-farming-stage fish and shrimp in aquaculture and microalgae-based water treatment. The present study was conducted to confirm the potentialities of the ABFT system at the remaining stages (seedling to adult farming, Nile tilapia) for industrial-level implementation. In the results at the seedling stage, an excellent water-purification effect and significant water conservation (97% reduction) by microalgae were verified. Indeed, among the fish, there were not any significant differences, either in growth performance or in body composition, and the wastewater from this system was recycled by use for the growth of various plants. Further, the ABFT system was demonstrated to have a positive effect on production economics by simplifying the production process steps (simultaneous fish breeding and wastewater treatment) and providing for a natural hatching environment. In summary, the ABFT system can be integrated with existing systems on an industrial level as an effective and efficient means of achieving sustainable aquaculture.

The design for wastewater treatment plant (WWTP) with GPS X modelling

“…In addition, the concentration of contaminant in the soil increased with the decreasing of the ultimate lateral capacity (Karkush et al, 2018). Kim, Jung, and Han (2019) study showed that water purification can be achieved by using ABFT system (autotrophic biofloc technology). The power of ABFTsystem at the remaining stages (seedling to adult farming) was demonstrated for industrial-level implementation.…”

“…An excellent water purification effect and about 97% reduction of water conservation were presented two by microalgae. The wastewater from the ABFT system can be reused by use for the growth of different plants (Kim et al, 2019).…”

Sustainable Surface Water Management and Wastewater Treatment Plant Location: A Case Study of Urmia Lake

“…Constraint (13) specifies the number of refineries that are set up to clean up urban wastewater. Constraint (14) ensures that only one treatment plant is located in the subnet of each dam. Constraint (15) ensures that percent of the demand for the residential sector is first secured in any case.…”

“…In recent years, water pollution, along with water scarcity issues, has been a critical environmental issue [14]. The use of refined wastewater saves the other water resources, in addition to solving the environmental crises caused by the entry of sewage into the receiving environment.…”

Investigating the 2017 Erratic Fishkill Episode in the Jhelum River, Kashmir Himalaya

“…Furthermore, the use of geospatial [39] and environmental flow [40] models could help in providing key insights about the health of aquatic ecosystems. In addition, the potential of microalgae can be explored for improving the water quality [41].…”