A Liquid Chitosan-Based Biocoagulant for Treating Wastewater from Fish Processing Plants

发表在《期刊》上的一项小说研究欧洲杯足球竞彩专注于从虾壳中有效产生的一种新的基于液体壳聚糖的生物凝结剂,用于从摩洛哥鱼类加工设施中清洁废水。

学习:新型液体壳聚糖基于摩洛哥植物的鱼类加工废水的处理。Image Credit: Sherbak_photo/Shutterstock.com

沿海贝类的恢复是散装海洋废物管理的可行方法。对这些污染物进行了定性分析,以评估所提出的生物凝血剂的治疗功效。

废水流出处理的重要性

Because of the many elements included in the pollutants, wastewater effluents from fish processing factories (fish processing wastewater, FPW) create an environmental problem. This industry earns USD 207,407,800.00 in export revenue each year.

将虾壳转化为液体壳聚糖:(a) dried shrimp exoskeleton; (b) liquid chitosan.

将虾壳转化为液体壳聚糖:(a)干虾外骨骼;(b)liquid chitosan. Image Credit: Nouj, N., Materials

海鲜加工部门还负责大量与鱼类相关的废物,例如骨骼,皮肤,鳞片,鳍和游泳膀胱,占原材料质量的36%(也许最高为60%)。如果进行了彻底的检查,这些牢固的废物可能是潜在的收入来源。

各种水处理过程

为了保护环境,使用了几种技术来补救这种废水。可用的疗法包括凝血量表,这是最广泛使用的方法,它解决了用天然螯合剂替代人造螯合剂以保护环境的必要性。

Importance of Chitosan

壳聚糖受雇于各种研究和技术,以鉴定天然凝血剂,包括其最普遍的鱼类副产品的生产:虾壳。

壳聚糖是最受欢迎的天然凝结剂作为生物材料。生物凝集剂主要用于减少对化学凝血剂的需求。为了补充废水,将壳聚糖粉浸入乙酸中。壳聚糖已被用来治疗食品领域的各种废水,包括肉类,乳制品,渣打和鸡蛋,以及许多浑浊的天然溪流。

生虾壳的EDX光谱:(a) for 10 µm SEM image and (b): for 50 µm SEM image.

生虾壳的EDX光谱:(a)for 10 μm SEM image and(b): for 50 μm SEM image. Image Credit: Nouj, N., Materials

It demonstrates a clearance rate of between 70% and 90% for suspended particulate solids content (TSS) and between 83 and 84 percent for biological oxygen demand (BOD) (BOD5).

壳聚糖的局限性

由于其高温和耐化学性,壳聚糖已广泛用于活性生物降解膜的生产中。尽管具有许多优势和独特的品质,但壳聚糖片仍具有明显的缺点,例如对水蒸气和气体的绝缘材料较弱,以及机械和热性能不足,这限制了它们在各种应用中的使用。

研究方法

废水的标本聚集在摩洛哥Agadir Anza工业区的一家鱼类生产工厂。

为了优化利用生物凝结过程的FPW处理,实验研究模型将以下三个元素视为输入变量:凝结剂百分比(x1),启动pH(x2)和温度(x3)。

通过观察生虾壳的各种混合物来确定该物质的元素含量。

研究成果

It was found that the dried biomaterial was not uniform. A dense network is produced, which is characterized by rather robust C-O-NH hydrogen bonds. These chains maintain a spacing of roughly 0.47 nm.

IR验证了(OH)羟基和(NH)原代胺的峰的存在。

生虾壳的XRD光谱。

生虾壳的XRD光谱。图片来源:Nouj,N。,材料欧洲杯足球竞彩

The bulk of the peaks in the calcite analyzed by X-ray diffraction resembled the peaks in the uncooked shrimp shells. The material's nature was disclosed by the mean peak of the scattering. The fact that this biomaterial demonstrated high compatibility suggests the existence of calcite in the specimen examined.

凝血剂量的重要性

凝血剂量是必不可少的凝血参数。最佳剂量影响了凝结剂的可持续性和经济表现。

低于最佳剂量或更高的剂量可能导致聚集不足和由于电荷稳定而减少影响,并且不会增加效率。

在浊度方面,3至9 mL剂量在碱性pH值(pH = 10)上很好地发挥作用。发现壳聚糖对pH值敏感,需要在碱性pH设置附近以有效的浊度和BOD5消除。发现pH值为10是FPW中壳聚糖有效性的最佳选择。

对于鱼类加工废水,液态壳聚糖具有强大的清洁潜力。三种凝结剂之间的浊度没有明显变化,但是液体壳聚糖和商业壳聚糖在BOD5度量中表现出很大的降低。

In short, The acquired findings demonstrated a good agreement between the experimental values and the values estimated by the estimation techniques, which was scientifically confirmed by an extra confirmation run.

参考

Nouj,N.,Hafid,N.,Alem,N。E.和Crestescu,I。(2021)。新型液体壳聚糖基于摩洛哥植物的鱼类加工废水的处理。MDPI材欧洲杯足球竞彩料https://www.mdpi.com/1996-1944/14/23/7133

Disclaimer: The views expressed here are those of the author expressed in their private capacity and do not necessarily represent the views of AZoM.com Limited T/A AZoNetwork the owner and operator of this website. This disclaimer forms part of theTerms and conditionsof use of this website.

Ibtisam Abbasi

写的

Ibtisam Abbasi

Ibtisam graduated from the Institute of Space Technology, Islamabad with a B.S. in Aerospace Engineering. During his academic career, he has worked on several research projects and has successfully managed several co-curricular events such as the International World Space Week and the International Conference on Aerospace Engineering. Having won an English prose competition during his undergraduate degree, Ibtisam has always been keenly interested in research, writing, and editing. Soon after his graduation, he joined AzoNetwork as a freelancer to sharpen his skills. Ibtisam loves to travel, especially visiting the countryside. He has always been a sports fan and loves to watch tennis, soccer, and cricket. Born in Pakistan, Ibtisam one day hopes to travel all over the world.

引用

请使用以下格式之一在您的论文,论文或报告中引用本文:

  • APA

    Abbasi,Ibtisam。(2021年11月25日)。一种基于液体壳聚糖的生物凝剂,用于从鱼类加工厂处理废水。azom。于2023年1月29日从//www.wireless-io.com/news.aspx?newsid=57473检索。

  • MLA

    Abbasi,Ibtisam。“用于从鱼类加工厂处理废水的液体壳聚糖的生物凝剂”。azom。2023年1月29日。

  • 芝加哥

    Abbasi,Ibtisam。“用于从鱼类加工厂处理废水的液体壳聚糖的生物凝剂”。azom。//www.wireless-io.com/news.aspx?newsid=57473。(2023年1月29日访问)。

  • 哈佛大学

    Abbasi,Ibtisam。2021。A Liquid Chitosan-Based Biocoagulant for Treating Wastewater from Fish Processing Plants。azom, viewed 29 January 2023, //www.wireless-io.com/news.aspx?newsID=57473.

告诉我们你的想法

您是否有评论,更新或想添加到此新闻故事中的任何内容?

Leave your feedback
您的评论类型
Submit