Disposal of wooden wastes used as heavy metal adsorbents as components of building bricks

Simón, Daiana; Gass, Sebastián; Palet, Cristina; Cristóbal, Adrián

doi:10.1016/j.jobe.2021.102371

Cited by 10 publications

(8 citation statements)

References 28 publications

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“…Simoń et al used pine sawdust char produced at a sawmill under uncontrolled conditions. 575 The char and control sawdust were employed as adsorbents for Ni(II), Zn(II), Cd(II), and their mixture. Both sawdust and char removed the contaminating heavy metals efficiently from the solutions containing the referred metals, but it was identified that the char performed better.…”

Section: Stored Through Accelerated Carbonation Curing (Acc) Of Bioch...mentioning

confidence: 99%

“…Evaluation of the bricks showed that contaminated biochar reduced the physical and mechanical properties of the bricks, but the properties were still in the range of values required for construction bricks. 575…”

Section: Stored Through Accelerated Carbonation Curing (Acc) Of Bioch...mentioning

confidence: 99%

“…The possibility of adding biochar to clay bricks is being investigated as a response to the necessity of making adequate disposal of or use of biochar that has previously been used as a filtering medium. Simón et al used pine sawdust char produced at a sawmill under uncontrolled conditions . The char and control sawdust were employed as adsorbents for Ni(II), Zn(II), Cd(II), and their mixture.…”

Section: Environmental Applications Of Biocharmentioning

confidence: 99%

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Perspectives of Engineered Biochar for Environmental Applications: A Review

2022

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Research on using biochar for environmental applications has witnessed unprecedented advances in the past decade. Biochar is universally considered one of the best alternatives to store carbon to fight global warming. Thus, the sequential use of biochar in environmental remediation compatible with carbon sequestration is receiving growing attention. One of the reasons for such huge interest is the possibility to engineer biochar with targeted properties (e.g., surface area and chemistry) relevant to existing environmental issues. These properties can be achieved by selecting appropriate raw materials, processing conditions, carbonization technology, and the possibility of selecting postproduction modification approaches. The objective of this review is to summarize strategies to enhance biochar properties relevant to its use in environmental services (e.g., water purification, air/gas cleaning, construction materials, soil amendments) and the corresponding results on the use of this material for these applications. The main methods for enhancing biochar properties for environmental applications reviewed include activation (physical and chemical), oxidation, metal and metal oxide modification, metal-free heteroatom doping, and biological modification. Both modified and unmodified biochars have been used for soil amendments as adsorbents of pollutants in the aqueous phase (e.g., removal of P and N, heavy metals, and organic pollutants), adsorbents of pollutants in the gas phase (e.g., biogas cleaning), as a catalyst, as an additive for improving anaerobic digestion, and as an admixture to cementitious/construction materials, with promising results in all cases. New opportunities for using biochar are being reported as the science of biochar production, modification, and use advances.

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Section: Stored Through Accelerated Carbonation Curing (Acc) Of Bioch...mentioning

confidence: 99%

Section: Stored Through Accelerated Carbonation Curing (Acc) Of Bioch...mentioning

confidence: 99%

Section: Environmental Applications Of Biocharmentioning

confidence: 99%

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Perspectives of Engineered Biochar for Environmental Applications: A Review

2022

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“…Have been found many strategies regarding reduction of resources and of wastes (first R), between them: modelling and numerical simulations; life cycle assessment (LCA) and cradle-to-cradle analysis; propose of software to manage the life cycle of construction (Cristiano et al, 2021;da Silva et al, 2021;NoParast et al, 2021). The feasibility of reusing resources and waste (second R) in the production of new materials has also been demonstrated in recent studies (Rakhshan et al, 2021;Simón et al, 2021;Suárez-Macías et al, 2021a, 2021bZhang et al, 2021). Finally, the insertion of recycled materials (third R) in the construction production chain is to be initiated and improved (Anwar et al, 2021;Delgado et al, 2021;Goel et al, 2021;Munaro and Tavares, 2021;Yu et al, 2021).…”

Section: Circular Economy In the Construction Industrymentioning

confidence: 99%

Circular economy in Brazilian construction industry: Current scenario, challenges and opportunities

et al. 2021

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The effective implantation of the circular economy (CE) presents a great challenge to the industrial sectors, mostly in those of greater environmental impact, such as construction industry. In Brazil, this industry has been growing over the last 20 years; however, such growth was based on an extractivist economy without any consideration to the end of its products lifespan. Only in 2017, 45 million tonnes of construction and demolition waste were generated in the country. This paper presents the current context of public policies in the Brazilian construction industry and proposes initiatives to introduce principles of CE. An exploratory study was developed, and all the 45 references presented in Appendix A of the review paper of Benachio et al. were considered to draw new ideas. These ideas are related and compared to key points in Brazilian regulations. Twelve opportunities for the improvement are listed and organized by construction stages (planning and design, materials manufacturing, construction processes, use and demolition). The ones related to design and planning using Green building information modelling, and materials manufacturing with recycled waste are highlighted due to the existing actions, standards, and Federal legislation. It was found that some sectors and the government already have actions related to CE (based on the 3R principle), but still there are several initiatives needed for its effective implementation in the Brazilian construction industry.

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“…The simplest and most effective method of recycling waste into the environmentally friendly materials is their consumption in the construction materials production [1][2][3]. Ceramic, cement and polymer composite materials are the most promising among all the construction materials, regarding the usage of waste as additives for various purposes [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Study of environmental safety of construction ceramics produced using anthropogenic waste

2021

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The study presents the research results confirming environmental safety of the ceramic material used for construction purposes, produced basing on low-plasticity clay from the Vladimir region with the introduction of 2.5 wt. % boric acid, 5 wt. % of electroplating sludge and 30 wt. % of cullet. The material environmental safety has been previously confirmed by Daphnia mortality method in diurnal water extracts from the chipped ceramic material samples, including possible mechanical damage and deterioration during the operation. The experimental studies embraced the determination of heavy metal ions concentration in diurnal extracts from the chipped ceramic material samples in neutral and acidic media. Additional studies dealing with the heavy metals migration into the extracts were carried out in static mode during 20 days. The research results confirm the environmental safety of ceramic material in neutral and acidic media during the heavy metals immobilization, caused by ceramics self-glazing and vitrification. The research results proved that the production of the developed material will expand the regional raw material base, will contribute to the utilization of large-capacity and toxic waste with simultaneous manufacturing of high-quality and environmentally friendly construction products for new buildings construction or existing buildings and structures reconstruction.

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Disposal of wooden wastes used as heavy metal adsorbents as components of building bricks

Cited by 10 publications

References 28 publications

Perspectives of Engineered Biochar for Environmental Applications: A Review

Perspectives of Engineered Biochar for Environmental Applications: A Review

Circular economy in Brazilian construction industry: Current scenario, challenges and opportunities

Study of environmental safety of construction ceramics produced using anthropogenic waste

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