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Abstract

Industrial pollution has been and continues to be a major factor causing the degradation of the environment around us, affecting the water we use, the air we breathe and the soil we live on. The exponential increase in industrialization. Spirulina Platensis cultivation in wastewater system is applicable for highly populated countries like India where waste is generated in high quantities and pose environmental problem. Spirulina Platensis species for domestic wastewater treatment was published in the year 1974 (Kosaric et al., 1974). Spirulina Platensis species were grown on large scale using secondary effluent of domestic wastewater treatment plant.According to Olguin et al., (2001) Spirulina Platensis has potential to reduce BOD of high carbon containing wastewater due to its mixotropic nature. The present study was concluded that the Spirulina platensis was cultivated on different concentration of dairy effluent yield better growth than control set and very efficient in COD/Phosphate/EC removal in all concentration. Study observed that chlorophyll, protein and carbohydrate content increases in Spirulina by using various concentration of dairy effluent as an alternative feed.

Current Insights on Wastewater Treatment and Application of Spirulina platensis in Improving the Water Quality

“…Several functional groups (carboxyl, phosphonate, amine and hydroxyl groups) are present on the bacterial cell wall that helps with metal binding and biosorption (Doyle et al, 1980). Certain cyanobacterial strains produce Extracellular Polymeric Substances (EPS), which potentially absorb heavy metals from their surroundings (Kulkarni et al, 2010). Biosorption on lignocellulosic wastes and by-products was identified as an alternative to the existing waste management technologies applied for toxic metal ions and dyes.…”

“…Nitrate and phosphorus contamination is another major problem of freshwater sources. Due to its mixotrophic nature, S. platensis has the potential to reduce biological oxygen demand (BOD) of high carbon-containing wastewater (Kulkarni et al, 2010). Application of Spirulina sp.…”

“…While, mass production of Single Cell Protein (SCP) from cyanobacteria on sewage is established by National Botanical Research Institute (NBRI), Lucknow and Central Food Technological Research Institute (CFTRI), Mysore. The SCP is produced and is further utilised as animal feed (Kulkarni et al, 2010). Algae on sewage serve a dual purpose of cleaning up potential environmental pollution and producing valuable protein.…”

“…Wastewater is used as a source of nutrients; S. platensis is found to grow better in diluted sewage when improved with sodium carbonate or sodium bicarbonate and nutrients in different proportions. This further screened, is added to aquaculture to feed fish or dried in a small solar drier for animal feed (Kulkarni et al, 2010). Soeprobowati & Hariyati (2014) suggested the use of S. platensis as a metal absorbent and further as fertiliser, after bioremedial processes.…”