Combination of nejayote and swine wastewater as a medium for Arthrospira maxima and Chlorella vulgaris production and wastewater treatment

Energy recovery and nutrients recycling from municipal sewage sludge

“…Since no CO 2 was provided during the cultivation process, the pH values for all the cultures increased to above 9.5 after 10 days. Similarly, earlier reports suggested that the recycling of nitrogen and phosphorus from the wastewater would depend on the characteristics of the microalga used (Delgadillo-Mirquez et al, 2016;López-Pacheco et al, 2019a). The initial TOC value in both the experimental cultures was 30 mg/L; after 10 days of growth, the TOC values in the experimental Picochlorum sp.…”

“…The organic compounds in the aqueous phase could be toxic to the Chlorella sp. A reduction of TN in the growth media could be explained by the consumption of microalgae for metabolism and growth, and abiotic factors such as ammonia stripping and nitrification by the nitrifying bacteria (Delgadillo-Mirquez et al, 2016;López-Pacheco et al, 2019a). While a reduction of 95.4% TN was observed in the Picochlorum sp.…”

Diatom microalgae as smart nanocontainers for biosensing wastewater pollutants: recent trends and innovations

“…For instance astaxanthin in green-red microalgae Haematococcus pluvialis and fucoxanthin in diatoms [ 36 , 37 ]. On the other hand, various studies showed that than other microalgae are also used widely in wastewater treatment such as Chlorella, Arthrospira [ 38 ], Scenedesmus [ 39 ], Botryococcus [ 40 ], Chlamydomonas [ 41 ], and Phormidium [ 42 ]. Brown microalgae has great potential in treating wastewater alone or in combination with bacteria [ 43 ].…”

Optimized Production of a Redox Metabolite (pyocyanin) by Pseudomonas aeruginosa NEJ01R Using a Maize By-Product

“…This wastewater is considered as a pollutant due to its contents extracted during the process: 0.5–14.5% of the corn’s weight goes to the effluent, which has a pH of 12 [ 18 ]. Various compounds and some phytochemicals associated with the cell wall of corn grains are released by alkaline hydrolysis and are related to parameters such as total organic carbon (TOC; 2700–59,000 mg L −1 ), biochemical oxygen demand (BOD; 2.69 mg O 2 L −1 ) and chemical oxygen demand (COD; 7500–40,000 mg L −1 ) [ 21 , 22 , 23 , 24 ]. Some of these parameters also indicate that the effluent has a high content of organic material (reducing and total sugars), which together with other compounds (protein, fiber, fat, calcium, arabinoxylans and polyphenols) define its content of nutrients (carbon source) and inorganic compounds, potentially applicable for biotechnological applications [ 25 , 26 , 27 , 28 , 29 ].…”

“…Recently, Bacillus megaterium (a native nejayote strain) was able to transform ferulic acid present in the effluent into 4-vinylguaiacol [ 33 ]. Moreover, nejayote in combination with other residual effluents such as vinasse (a waste from tequila production) and swine wastewater allow for obtaining bioenergy or can used for the growth of microalgae [ 24 , 34 ]. Thus, it is clear that components of nejayote can be exploited for the production of different biotechnological products.…”