Treatment of swine wastewater in constructed wetlands cultivated with Tangola grass

IF 0.5 4区环境科学与生态学 Q4 ENGINEERING, ENVIRONMENTAL

Environment Protection Engineering Pub Date : 2022-01-01 DOI:10.37190/epe220302

Paola Alfonsa Vieira Lo Monaco, G. H. Vieira, L. Mattedi, Jayni Zucoloto Gasparini, A. Jani, I. R. Haddade

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引用次数: 0

Abstract

This study aimed to evaluate the efficiency of constructed wetlands (CWS) cultivated with Tangola grass ( Urochloa purpuracens and Urochloa arrecta ) in the treatment of wastewater from pig farming. The CWS were subjected to an organic loading rate of 300 kg of BOD/(ha·day) from swine wastewater. We analyzed total solids, turbidity, color, total Kjeldahl N, and total P in the influent and effluent to the CWS every 30 days for a duration of 4 months. The whole plot factor was vegetation (CWS with and without Tangola grass). The subplot factor was assessment time (15, 45, 75, and 105 days of CWS operation). There was no statistical difference between CWS with and without in terms of the removal efficiency. After 105 days, average removals of 90–95% turbidity, 79–80% total solids, 76–82% color, 42–70% total Kjeldahl N, and 51–63% total P were obtained in all CWS. While Tangola grass did not enhance the removal efficiency of the parameters assessed in this study, it may be harvested to provide fodder for animals, making it a valuable addition to CWS.

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唐古拉草人工湿地养猪废水处理研究

摘要本研究旨在评价唐古拉草(Urochloa purpuracens和Urochloa arrecta)人工湿地(CWS)对养猪废水的处理效果。以300 kg BOD/(ha·day)的生猪废水为原料，对水化池进行有机负荷处理。在4个月的时间里，我们每30天分析一次CWS进水和出水中的总固形物、浊度、颜色、总凯氏定氮和总磷。整个样地因子为植被因子(带和不带Tangola草的CWS)。子图因子为评估时间(CWS操作15、45、75和105天)。加水煤浆与不加水煤浆的去除率无统计学差异。105 d后，所有水煤浆的浊度平均去除率为90-95%，总固形物平均去除率为79-80%，色度平均去除率为76-82%，总凯氏定氮平均去除率为42-70%，总磷平均去除率为51-63%。虽然Tangola草没有提高本研究中评估的参数的去除效率，但它可以收获作为动物饲料，使其成为有价值的CWS添加物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environment Protection Engineering 环境科学-工程：环境

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

12 months

期刊介绍： Water purification, wastewater treatment, water reuse, solid waste disposal, gas emission abatement, systems of water and air pollution control, soil remediation.