关键词: Ammonia Livestock wastewater Microalgae culture optimisation Microbial load Nutrient uptake Turbidity

Mesh : Microalgae / growth & development metabolism Wastewater Livestock Animals Nitrogen Phosphorus Nutrients Waste Disposal, Fluid / methods Carbon Biomass

来  源:   DOI:10.1016/j.jenvman.2024.120258

Abstract:
Global sustainable development faces several challenges in addressing the needs of a growing population. Regarding food industries, the heightening pressure to meet these needs has resulted in increased waste generation. Thus, recognising these wastes as valuable resources is crucial to integrating sustainable models into current production systems. For instance, the current 24 billion tons of nutrient-rich livestock wastewater (LW) generated yearly could be recovered and valorised via biological uptake through microalgal biomass. Microalgae-based livestock wastewater treatment (MbLWT) has emerged as an effective technology for nutrient recovery, specifically targeting carbon, nitrogen, and phosphorus. However, the viability and efficacy of these systems rely on the characteristics of LW, including organic matter and ammonium concentration, content of suspended solids, and microbial load. Thus, this systematic literature review aims to provide guidance towards implementing an integral MbLWT system for nutrient control and recovery, discussing several pre-treatments used in literature to overcome the challenges regarding LW as a suitable media for microalgae cultivation.
摘要:
全球可持续发展在满足不断增长的人口需求方面面临若干挑战。关于食品工业,满足这些需求的压力越来越大,导致废物产生增加。因此,认识到这些废物是宝贵的资源是至关重要的可持续模式整合到当前的生产系统。例如,目前,每年产生的240亿吨富含营养的牲畜废水(LW)可以通过微藻生物质通过生物吸收进行回收和增值。基于微藻的牲畜废水处理(MbLWT)已成为一种有效的养分回收技术,特别针对碳,氮,和磷。然而,这些系统的可行性和有效性依赖于LW的特性,包括有机物和铵的浓度,悬浮固体含量,和微生物负荷。因此,这篇系统的文献综述旨在为实施营养控制和恢复的整体MbLWT系统提供指导,讨论了文献中使用的几种预处理方法,以克服关于LW作为微藻培养的合适培养基的挑战。
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