Treatment of food processing wastewaters by using Black Soldier Fly larvae: Preliminary results

IF 6.3 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2025-04-17 DOI:10.1016/j.jwpe.2025.107746

Valentina Grossule, Mia Henjak, Raffaello Cossu

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Abstract

The biological process based on the use of Black Soldier Fly larvae (BSFL) has emerged as an innovative treatment technology for high organic content (HOC) wastewaters (WW), such as those from food and beverage sector. The process offers both higher treatment efficiency and generation of larval biomass for resource recovery. This study provides the first insight into the suitability of real food-processing HOC-WWs to the BSFL treatment process. Six food-processing wastewaters were tested, such as from bakery, brewery, dairy, juice production, slaughterhouse, and winery. Preliminary evaluation of WW suitability was based on WW quality in terms of organic content, nitrogen, phosphorous and dominant macronutrients for larvae diet (proteins, carbohydrates, and lipids). The BSFL process performance was evaluated by monitoring larval development and removal of organic matter, nitrogen and phosphorous. Bakery, brewery and winery showed to be suitable for BSFL process, being characterised by high TOC concentrations and by good nutritional quality, achieving up to 93 %, 86 % and 95 % removal of TOC, COD and BOD respectively. This confirmed BSF process as an efficient technology for organics removal and bioconversion into larval biomass In contrast, dairy, juice, slaughterhouse samples, showed to not be suitable as single feeding. Nutritional quality can be improved by appropriate mixing of various type of WW.

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黑兵蝇幼虫处理食品加工废水：初步结果

基于黑兵蝇幼虫（BSFL）的生物处理技术已成为食品和饮料行业高有机废水（HOC）处理的一种创新技术。该工艺既具有较高的处理效率，又能产生用于资源回收的幼虫生物量。本研究首次深入了解了实际食品加工HOC-WWs对BSFL处理工艺的适用性。对六种食品加工废水进行了测试，如来自面包店、啤酒厂、乳制品、果汁生产、屠宰场和酿酒厂的废水。从有机含量、氮、磷和主要常量营养元素（蛋白质、碳水化合物和脂类）等方面对WW的适宜性进行初步评价。通过监测幼虫发育和有机物、氮、磷的去除情况，评价BSFL工艺性能。面包店、啤酒厂和酿酒厂适合采用BSFL工艺，其特点是TOC浓度高，营养质量好，TOC去除率分别达到93%、86%和95%，COD和BOD去除率分别达到86%和95%。这证实了BSF工艺是去除有机物并将其转化为幼虫生物量的有效技术。相比之下，乳制品、果汁、屠宰场样品不适合作为单一饲养。不同品种的WW适当混合可提高其营养品质。

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来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies