通过水蕹菜（Wolffia arrhiza）的培养去除鹌鹑养殖场废水中的养分。

Nutrient removal of effluent from quail farm through cultivation of Wolffia arrhiza.

机构信息

The Graduate School of Social and Environmental Development, National Institute of Development Administration, Bangkapi, Bangkok 10240, Thailand.

出版信息

Bioresour Technol. 2011 Aug;102(16):7388-92. doi: 10.1016/j.biortech.2011.05.061. Epub 2011 May 30.

DOI:10.1016/j.biortech.2011.05.061

PMID:21669519

Abstract

The objective of this work was to study the nutrient removal using the Wolffiaarrhiza during the treatment of laying quails farm effluent. The relationship between W. arrhiza biomass and treatment time, the change in water qualities, and nitrogen-balance (N-balance) were evaluated. The results showed that a biomass of 12.0g of W. arrhiza per liter of effluent and a treatment period of 30 days were found to provide the best conditions for W. arrhiza's growth and the quality of the treated effluent in terms of biological oxygen demand, suspended solids, total phosphorus, nitrate, total ammonia nitrogen and total Kjeldahl nitrogen. The pH and salinity were similar for each level of biomass. The W. arrhiza biomasses of 4.00-12.0g/l of effluent were suitable for W. arrhiza survival over time. Since W. arrhiza can fix N in the atmosphere, it can grow very well in effluent containing a low level of N.

摘要

本研究旨在利用满江红（Wolffia arrhiza）去除鹌鹑养殖场废水的营养物质。评估了满江红生物量与处理时间、水质变化和氮平衡（N 平衡）之间的关系。结果表明，每升废水中含有 12.0 克满江红生物量，处理时间为 30 天，是满江红生长和处理后废水生物需氧量、悬浮固体、总磷、硝酸盐、总氨氮和总凯氏氮质量的最佳条件。每个生物量水平的 pH 值和盐度相似。废水中的满江红生物量为 4.00-12.0g/L 时，满江红随着时间的推移能够很好地存活。由于满江红可以在大气中固定氮，因此它可以在氮含量较低的废水中很好地生长。