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Advances in Land and Sediment Heavy Metal Remediation and Applications

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A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Environmental Sciences".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 5345

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Special Issue Editors

Dr. Xu Zhang

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Guest Editor

School of Architecture and Urban Planning, Shandong Jianzhu University, Jinan 250101, China
Interests: pollutant migration and transformation; microbe-plant system function; ecological remediation technology

Prof. Dr. Zhaojie Cui

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Guest Editor

School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
Interests: environmental assessment; pollution control; resource utilization

Special Issue Information

Dear Colleagues,

Advances in land & sediment heavy metal remediation and applications is an important issue, both for soil and groundwater environments. This poses new challenges in the advancement of physico-chemical and biological technologies for heavy metal monitoring, positioning as well as treatment. Therefore, this Special Issue is intended for the presentation of new ideas and experimental results in the field of advances in land & sediment heavy metal remediation and application from field studies, and theory to its practical use.

Areas relevant to advances in land & sediment heavy metal remediation and applications include, but are not limited to, physico-chemical and biological processes, novel remediation technologies, large-scale field applications, high-precision positioning, modeing, fate and behavior of heavy metals in land & sediment.

This Special Issue will publish high-quality, original research papers, in the overlapping fields of:

Characterization of the harmful effects of heavy metals in land & sediment.
Monitoring distribution, speciation, transfer, accumulation and transformation of heavy metals in land & sediment environment.
Physico-chemical, biological processes for heavy metal remediation.
High-precision positioning and modeling to heavy metal fate and transport.

Dr. Xu Zhang
Prof. Dr. Zhaojie Cui
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

heavy metal remediation
land & sediment environments
fate and transport of heavy metals
high-precision positioning and modeling
physico-chemical and biological processes
application

Published Papers (3 papers)

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Research

15 pages, 7845 KiB

Open AccessArticle

Research on the Spatial Perception of Stakeholders in Brownfield Redevelopment Based on Value Compatibility Analysis

by Yan Cui and Wenbo Fang

Appl. Sci. 2023, 13(1), 620; https://doi.org/10.3390/app13010620 - 2 Jan 2023

Cited by 1 | Viewed by 1620

Abstract

Under the current urban renewal background, the subjective attitude of stakeholders directly affects the feasibility of planning projects in the development or protection activities related to brownfield redevelopment. It is key that the public effectively participates in planning and decision-making to explore the suitable expression method of public attitude. In this paper, Jigang, Jinan, Shandong Province is taken as an example. By using participatory mapping and semi-structural interviews, the landscape perceived value of 365 (342 valid) stakeholders in the original site of Jigang is investigated. By using hot spot analysis, correspondence analysis and compatibility index analysis, the spatial composition of public perceived landscape value, the correspondence between landscape value and land use and its compatibility with existing conservation and renewal schemes are revealed. On this basis, three types of brownfield land redevelopment attitude areas are identified. The results show that: 1. The attitude of Jinan Iron and Steel Group’s renewal based on the degree of compatibility is location-dependent, and the spatial difference analysis of this attitude provides more detailed data support for the protection and renewal design, planning management and conflict control; 2. The landscape perceived value of case stakeholders has regularity in spatial distribution and is related to a certain material landscape foundation (land use), which is beneficial in explaining the possible social phenomena caused by landscape change; 3. Participatory cartography combined with landscape value investigation provides an effective method for the study of perceived landscape. Through cartographic visualization, statistical analysis and index model construction, the spatial structure characteristics of perceived landscape value can be revealed. It can provide effective decision support for brownfield urban renewal projects, solve the problem that the current upper-level planning of such renewal is not matched with the actual demand, and improve the vitality of brownfield sites in the development area. Full article

(This article belongs to the Special Issue Advances in Land and Sediment Heavy Metal Remediation and Applications)

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14 pages, 6304 KiB

Open AccessArticle

Effects of Glucose Addition on Dynamics of Organic Carbon Fractions and cbbL-Containing Bacteria in Wetlands

by Qingqing Cao, Jinhang Wu, Wen Ma, Bing Liu and Huabin Xiao

Appl. Sci. 2022, 12(20), 10239; https://doi.org/10.3390/app122010239 - 12 Oct 2022

Viewed by 1435

Abstract

Studying the CO₂-assimilation potential under the effect of glucose addition is of great significance to completely comprehend the dynamic carbon cycle in wetland ecosystems. Rhizospheric sediments (RS) and bulk sediments (BS) were selected, with the addition of glucose (G) or not, and two experimental pots (RSG and BSG) and two control pots (RS and BS) were formed. Then, within 45 h of glucose addition, the sediments were sampled at intervals of 4 h for dynamic monitoring. The bacterial communities encoded by CO₂-assimilating function genes (cbbL) and the corresponding activities of key enzyme (ribulose-1,5-bisphosphate carboxylase oxygenase, RubisCO), and the light fraction (LF) and heavy fraction (HF) of organic carbon (C) and nitrogen (N) of the samples were determined. The results demonstrated that the dynamic processes of glucose deposition and degradation occurred in sediments from RSG and BSG, with the greatest depositions of 2.35 and 2.48 mg·g⁻¹ in the 4th and 12th hour, respectively. The contents of LFOC, LFON, HFOC, and HFON decreased by 171.70%, 125.45%, 8.40%, and 68.17% in the RSG pot, and decreased by 221.55%, 102.61%, 0.07%, and 74.74% in the BSG pot, respectively, which suggested the dominant activities of C and N mineralization. The FT-MIR of LF showed different changes of typical chemical bonds between RSG and BSG during the process, which further indicated irregular and inconsistent mineralization activities. The RubisCO activities in the rhizospheric sediments (52.14 nmol (g·min)⁻¹ on average) were substantially greater than in the bulk sediments, which indicated the high potential of carbon assimilation in rhizospheric sediments. Moreover, it showed a lower trend in BSG, BS, and RS, but an increasing trend in RSG after the glucose addition, albeit the effects were recovered in the 45th hour. The cbbL-containing bacteria were more abundant in the rhizospheric sediments than in the bulk sediments, and this effect was higher than that of the glucose addition. Proteobacteria were the dominating phylum with mean values of 93.49%, and Burkholderiales was found to be the dominant order (37.74% on average). Moreover, the changes in bacterial composition between the rhizospheric sediments and bulk sediments were more pronounced than they were during the process. Therefore, the effects of glucose degradation on RubisCO activity and cbbL-containing bacteria were transient, but the effects on organic matter fractions were straightforward, which probably further change the bacterial abundance and composition. Full article

(This article belongs to the Special Issue Advances in Land and Sediment Heavy Metal Remediation and Applications)

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18 pages, 5954 KiB

Open AccessArticle

Evaluation and Construction of Regional Ecological Network Based on Multi-Objective Optimization: A Perspective of Mountains–Rivers–Forests–Farmlands–Lakes–Grasslands Life Community Concept in China

by Huabin Xiao, Yanxin Guo, Yue Wang, Yutong Xu and Daliang Liu

Appl. Sci. 2022, 12(19), 9600; https://doi.org/10.3390/app12199600 - 24 Sep 2022

Cited by 6 | Viewed by 1473

Abstract

Landscape degradation and habitat fragmentation are some of the most urgent environmental problems associated with human development and regional integrated planning. Regional ecological network planning involves connecting high-quality habitats and reducing the negative impact of landscape fragmentation on the remaining natural patches through structural and functional connectivity. The concept of “mountains–rivers–forests–farmlands–lakes–grasslands life community”, as a system concept to solve the whole problem of regional ecological network in China, associates all natural ecological factors and ecological relations through a systematic pattern, emphasizing the systematicness and integrality of ecological environment protection. This study, based on the progress of the study of “mountains–rivers–forests–farmlands–lakes–grasslands life community” and ecological network, clarifies the intrinsic connection and systemic relationship between humans and natural resources, and it clarifies the importance of multi-objective ecological network construction for the integrated development of resources in the whole region. Taking the Taishan area as the study subject, the ecological network construction approach of “risk assessment–source identification–corridor extraction–node selection” was constructed from three objectives—ecological systemic structure, ecological process integrity and ecological service efficiency—based on morphological spatial pattern analysis, minimum cumulative resistance model, gravity model and other modeling methods. The findings of this study can provide the evidence and clarification for the construction of a regional ecological network in China. Full article

(This article belongs to the Special Issue Advances in Land and Sediment Heavy Metal Remediation and Applications)

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