WebJan 6, 2024 · presence of high levels of heavy metals is a major obstacle to the utilization of biogas as a fertilizer resource. In this study, the heavy metal contents in biogas residue, slurry, and discharged sewage from three representative farms of gooseries, henneries, and dairy farms in the Yangtze River Basin were investigated and assessed. WebFeb 1, 2024 · Biogas slurry (BS) is a liquid by ... However, BS is also rich in many heavy metals, especially Cu and Zn, which can accumulate in soils over time following long-term application (Jin and Chang, 2011; Legros et al., 2013; Formentini et al., 2015).
Fate and transfer of heavy metals following repeated biogas slurry
WebFeb 9, 2024 · In addition, biogas slurry application may increase the risk of heavy metal contamination in soil (Xiong et al. 2010). For example, Bian et al. ( 2016 ) found that following biogas slurry application to farmland around Taihu, China, the contents of soil Pb, Cd, and Zn exceeded the limits of the Chinese Soil Environmental Quality Standard II ... WebAug 15, 2024 · Biogas slurry (BS) is a main byproduct of biogas production that is commonly used for agricultural irrigation because of its abundant nutrients and microelements. However, direct application of BS may cause quality decline and nitrate and heavy metal accumulation in crops. To address this issue, a m … crypto license in switzerland
Sustainability Free Full-Text Pretreatment of Biogas Slurry by ...
WebJan 1, 2024 · Although the use for soil fertilizer is a cost-effective solution, it has been found that repeated use of biogas slurry that contains high heavy metal contents can cause pollution to the soil ... WebJan 4, 2024 · The residual slurry obtained from the anaerobic digestion (AD) of biogas feed substrates such as livestock dung is known as BGS. BGS is a rich source of nutrients and bioactive compounds having an important role in establishing diverse microbial communities, accelerating nutrient use efficiency, and promoting overall soil and plant health … WebJan 8, 2024 · Purpose Biogas slurry (BS) is widely used as a valuable fertilizer for crop production. However, little is known about the effects of long-term BS application on … crypto licensing in cyprus 2021 updates