scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Roles of adding biochar and montmorillonite alone on reducing the bioavailability of heavy metals during chicken manure composting.

01 Dec 2019-Bioresource Technology (Bioresour Technol)-Vol. 294, pp 122199
TL;DR: It is suggested that biochar and montmorillonite additions were an effective regulation method to reduce the bioavailability of HM from composting system.
About: This article is published in Bioresource Technology.The article was published on 2019-12-01. It has received 75 citations till now. The article focuses on the topics: Biochar & Bioavailability.
Citations
More filters
Journal ArticleDOI
TL;DR: The results showed that the concentration of Cu2+, Zn2+, Ni2+, Pb2+, Cr3+ and Cd2+ decreased with adding the compost-derived humin, but the removal rates were relatively low (<30% on average).

102 citations

Journal ArticleDOI
TL;DR: The experimental results confirmed the existence of sensitive, resistant and actor microorganisms during beef cattle and chicken manures composting and showed that the toxicity of metals to microorganisms were Cu > Zn > Cd during composting.

73 citations

Journal ArticleDOI
TL;DR: The results revealed that DOM concentrations decreased by 49.8%, 53.9% and 86.4% during CM, GW and MSW composting, respectively, which are helpful to regulate the DOM stabilization during composting and improve the quality of final composts.

62 citations

Journal ArticleDOI
TL;DR: Beta and alpha diversity as well as network analysis illustrated composting micro-environmental ecology with exogenous additive biochar to remarkably affect the dominant resistant bacterial community distribution by adjusting the interacting between driving environmental parameters with potential host bacterial in composting.

60 citations

Journal ArticleDOI
TL;DR: Comparison of N availability and N loss indicated that the combination of biochar and montmorillonite are more effective than that of separate application during composting.

55 citations

References
More filters
Journal ArticleDOI
TL;DR: The basic concepts of the composting process and how manure characteristics can influence its performance are explained and a summary of those factors such as nitrogen losses, organic matter humification and compost maturity which affect the quality of composts produced by manure composting is presented.

1,795 citations

Journal ArticleDOI
TL;DR: In this article, a facile synthesized porous graphitic carbon with microtubular structure, high graphitization degree and abundant porosity demonstrates an outstanding advantage of excellent conductivity and facilitated mass transport.
Abstract: The preparation processes of efficient photocatalyst containing defect regulation and heterostructure construction are usually complicated and difficult to control at present, besides, the catalyst agglomeration in solution further limits their application. There is an urgent need for designing a potentially cheap, efficient, sustainable and easy-prepared nanocomposite to improve photocatalytic performance. In present study, the facile synthesized porous graphitic carbon with microtubular structure, high graphitization degree and abundant porosity demonstrates an outstanding advantage of excellent conductivity and facilitated mass transport. Such porous graphite biochar (PGBC) self-assembled with g-MoS2 nanosheets is observed by the optimized band gap, enhanced visible light harvesting, accelerated charge transfer and efficient photo-generated carrier’s separation. Considering the favorable specific surface area and pore distribution of PGBC for avoiding nanosheet agglomeration, the as-prepared composites display quite high efficiency for tetracycline hydrochloride (TC) removal based on the synergistic action of the desirable absorption and photocatalytic capability. Mechanism exploration indicates that surface adsorption is mainly dominated by electrostatic interaction, hydrogen bonding, π-π stacking and pore-filling, and hole (h+) and hydroxyl radical (·OH) are the predominant active species responsible for TC degradation. Furthermore, the nanocomposites possess advisable stability performance for TC removal in contaminated river water, further providing an underlying insight for establishing high-efficient and easy-prepared photocatalysts in practical contaminated water remediation.

494 citations

Journal ArticleDOI
TL;DR: This review summarizes the application of biological technologies, which contains microbial technologies (function microbial remediation and composting or compost addition), biochar, phytoremediation technologies, genetic engineering technologies and biochemical technologies, for the remediation of co-contaminated soil with heavy metals and organic pollutants.
Abstract: Compound contamination in soil, caused by unreasonable waste disposal, has attracted increasing attention on a global scale, particularly since multiple heavy metals and/or organic pollutants are entering natural ecosystem through human activities, causing an enormous threat. The remediation of co-contaminated soil is more complicated and difficult than that of single contamination, due to the disparate remediation pathways utilized for different types of pollutants. Several modern remediation technologies have been developed for the treatment of co-contaminated soil. Biological remediation technologies, as the eco-friendly methods, have received widespread concern due to soil improvement besides remediation. This review summarizes the application of biological technologies, which contains microbial technologies (function microbial remediation and composting or compost addition), biochar, phytoremediation technologies, genetic engineering technologies and biochemical technologies, for the remediation of co-contaminated soil with heavy metals and organic pollutants. Mechanisms of these technologies and their remediation efficiencies are also reviewed. Based on this study, this review also identifies the future research required in this field.

411 citations

Journal ArticleDOI
TL;DR: With the development of industrialization and agriculture, the phenomenon of soil contamination by combination of potentially toxic elements and organic pollutants has been a terrible environmental problem as discussed by the authors, which has been identified as a serious environmental problem.
Abstract: With the development of industrialization and agriculture, the phenomenon of soil contamination by combination of potentially toxic elements and organic pollutants has been a terrible environmental...

323 citations

Journal ArticleDOI
TL;DR: In this article, activated biochar was added for investigating the influences on physico-chemical properties of soil during composting, and the concentrations of available metals and arsenic in soil were detected on great reduction in the treatment of biochar-blended composting.
Abstract: Unreasonable disposal of organic wastes has caused great problems, including occupying land, affecting organoleptic feeling and causing environmental re-contamination. By incorporation of biochar as raw material into co-composting with agricultural organic matter, it not only can the wastes recycling be realized, but also can the remediation efficiency of multi-element contaminated soil be improved to reach land reclamation. Activated biochar was added for investigating the influences on physico-chemical properties of soil during composting. The concentrations of available metals and arsenic in soil were detected on great reduction in the treatment of biochar-blended composting. Based on the stronger adsorption and microbial activity induced by biochar, the initial content of available PAHs in wetland soil decreased to remain about 3.03% and 5.47% below the control (9.47%) in co-composting added with activated and fresh biochar, respectively. It was related to the observation with improved microbial number as well as optimized fungi/bacteria gene copy number ratio by activated biochar addition, which is conducive to vegetation replanting of contaminated land. The feasibility of applying biochar into co-composting with contaminated soil was confirmed by not only the high remediation efficiency but also the sustainable recycling of agricultural waste.

323 citations