The effects of biochar addition to compost on change characteristics and passivation effect of heavy metals (Cd, Pb, Cu, Zn, Ni) were investigated during the process of sludge composting with two different composts (group A:with biochar; group B:without biochar) and land application of compost. The results indicated that the total amount of heavy metals (except Ni) did not change significantly during the process of sludge composting and land application of compost. Additionally, biochar addition had little effect on the total amount of heavy metals. During the sludge composting process, five heavy metals (Cd, Pb, Cu, Zn, Ni) were passivated. Sludge composting with the addition of biochar can decrease the available contents of heavy metals, and the passivation effect of heavy metals was significant (<0.05). The passivation rate of the five examined heavy metals (Cd, Pb, Cu, Zn, Ni)ranged from 16.39%-43.10%, and the passivation effect for Zn and Ni was more significant. However, the passivation effect was not significant in the sludge composting process without the addition of biochar (>0.05). The concentrations of heavy metals in soil increased with the application of sewage sludge compost products. In the short term, biochar had a certain passivation effect on the available heavy metals in soils with sludge compost application, but the effect was not significant.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.13227/j.hjkx.201804184 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Association between exposure to urinary metal and all-cause and cardiovascular mortality in US adults.
PLoS One
December 2024
Guangdong Provincial Hospital of Chinese Medicine (Second Affiliated Hospital of Guangzhou University of Chinese Medicine), Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China.
Background: Further evidence is required regarding the influence of metal mixture exposure on mortality. Therefore, we employed diverse statistical models to evaluate the associations between eight urinary metals and the risks of all-cause and cardiovascular mortality.
Methods: We measured the levels of 8 metals in the urine of adults who participated in the National Health and Nutrition Examination Survey (NHANES) from 1999 to 2018.
Is increased mutation driving genetic diversity in dogs within the Chornobyl exclusion zone?
PLoS One
December 2024
Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States of America.
Environmental contamination can have lasting impacts on surrounding communities, though the long-term impacts can be difficult to ascertain. The disaster at the Chornobyl Nuclear Power Plant in 1986 and subsequent remediation efforts resulted in contamination of the local environment with radioactive material, heavy metals, and additional environmental toxicants. Many of these are mutagenic in nature, and the full effect of these exposures on local flora and fauna has yet to be understood.
View Article and Find Full Text PDFEstuarine dispersal of an invasive Holarctic predator (Esox lucius) confirmed in North America.
PLoS One
December 2024
College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America.
The capacity for a non-native species to become invasive largely hinges on existing dispersal capacity or adaptation of dispersal in new environments. Here we provide early evidence that invasive Northern Pike (Esox lucius), a Holarctic freshwater top predator, illegally introduced in the late 1950s into Southcentral Alaska, are now dispersing through estuarine corridors. This finding represents the first known documentation of estuary use and dispersal by Northern Pike in North America, exacerbating conservation concerns for already depressed populations of culturally and economically important species such as salmonids.
View Article and Find Full Text PDFTrace elements in feathers, pectoral plumage, and blood of griffon vultures (Gyps fulvus) from a captive environment of Southern Italy.
Vet Res Commun
December 2024
Istituto Zooprofilattico Sperimentale della Sicilia, via Gino Marinuzzi 3, Palermo, 90129, Italy.
Heavy metals and metalloids are increasingly recognised as a threat to avian health, especially in species at the top of the food chain such as vultures. Griffon Vultures (Gyps fulvus) are ideal bioindicators for studying environmental contamination due to their scavenging habits and territorial behavior. In this study, we analysed the concentrations of six trace elements (Cd, Pb, Cr, Sb, Ni, and Cu) in feathers, pectoral plumage, and blood samples of Griffon Vultures from a captive environment in Sicily, Southern Italy, using an ICP-MS method.
View Article and Find Full Text PDFA colorimetric sensor for the sensitive and rapid detection of ampicillin based on CS-Cu,Fe/HS nanozyme.
Mikrochim Acta
December 2024
Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China.
A novel copper and iron doped containing chitosan and heparin sodium carbon dots (CS-Cu,Fe/HS) nanozyme was formulated through a single-step microwave digestion method. CS-Cu,Fe/HS exhibits excellent peroxidase (POD)-like activity and positive charge characteristics, and it can oxidize the negatively charged 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) in the presence of HO to produce a green compound (ox-ABTS). Furthermore, CS-Cu,Fe/HS enhances electron transfer and provides additional active sites through the valence state transformations of Fe/Fe and Cu/Cu.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!