CSDL Bài trích Báo - Tạp chí

chủ đề: Wastewater treatment

  • Duyệt theo:
2 The domestic wastewater treatment capacity of Spirulina platensis SP4 and the application of the treated wastewater in stimulating rice germination / Nguyen Thi Kieu Oanh, Duong Thi Thuy, Doan Thi Oanh, Vu Thi Nguyet, Nguyen Van Nam // Công nghệ sinh học - Vietnam Journal of Biotechnology .- 2022 .- Vol. 20(4) .- P. 773-784 .- 363

Many scientists are interested in microalgae and cyanobacteria because of their richness in high-value bioactive metabolites (proteins, lipids, vitamins, plant growth regulators, and others). Microalgae and cyanobacteria can be used to produce valuable commodities such as dietary supplements, biofuel, animal feed, and agricultural fertilizer, etc. To improve the economic feasibility of the cyanobacterial product recovery process, it is possible to utilize domestic wastewater as a source of nutrients for their growth. This research focuses on assessing the ability of domestic wastewater treatment and treated domestic wastewater utilization to stimulate BC15 rice-grain sprouting by cyanobacteria Spirulina platensis SP4. The obtained research results have elucidated the feasibility of employing cyanobacteria in residential wastewater treatment as well as the reuse of treated wastewater for plant development.

3 The roles of microalgae and bacteria in wastewater treatment / Nguyen Tran Dinh, Le Phuong Thu, Ngo Thanh Dat, Nguyen Khanh Toan, Pham Le Anh // Công nghệ sinh học - Vietnam Journal of Biotechnology .- 2022 .- Vol 20 .- P. 573-588 .- 363

Nature-based wastewater treatment employing microalgae and bacteria has gained serious attention due to its combination with valuable biomass production. In wastewater, microalgae serves as the primary source of dissolved oxygen (DO) production for bacterial organic matter degradation. In addition, microalgae can effectively remove nutrients, pathogens as well as various heavy metals. Bacteria, on the other hand, has been widely applied in biological wastewater treatment for stabilization of organic matter, nitrification, denitrification, and under some specific conditions, enhanced biological phosphorus removal. When cultured together, microalgae and bacteria can cooperate effectively for wastewater treatment as well as form big flocs which can be harvested easily via sedimentation. However, some natural antagonistic interactions between them should be expected. Various environmental and operational factors showed significant influences on microalgae and bacteria in wastewater. They can impact system performance individually or in combination with others. Therefore, those factors should be carefully monitored for improving performance of the system.