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The smart agriculture applications (current and future) 智能农业应用(当前和未来)
Pub Date : 2022-12-05 DOI: 10.29328/journal.acee.1001045
Abul-Soud Mohamed
Smart agriculture applications (monitoring, sensing, automation and control) of micro-climate and environmental conditions for different agriculture production sectors and scales, decision-makers and researchers need to take it into consideration to strengthen the efforts of mitigation and adaption of climate change impacts as well as maximize the natural resources use efficiencies and food production. Motivate the farmers to implement smart agriculture applications, especially in developed and poor countries, strong cooperation for technology transfer and build up the technology infrastructure of information and communication (ICT) plus the internet of things (IoT).
不同农业生产部门和规模的微气候和环境条件的智能农业应用(监测、传感、自动化和控制),决策者和研究人员需要考虑到这一点,以加强缓解和适应气候变化影响的努力,并最大限度地提高自然资源的使用效率和粮食生产。激励农民实施智能农业应用,特别是在发达国家和贫穷国家,加强技术转让合作,建立信息通信和物联网的技术基础设施。
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引用次数: 0
Integrated vermicomposting and green roof techniques for food production in urban and rural areas 综合蠕虫堆肥和绿色屋顶技术用于城市和农村地区的粮食生产
Pub Date : 2022-12-05 DOI: 10.29328/journal.acee.1001046
Abul-Soud Mohamed
Thousands of tons of biodegradable organic waste generates in urban and rural areas every day, creating disposal problems. Urban organic waste can be converted into valuable output products (vermicompost, vermin-liquid, and earthworms) by applying a vermicomposting technique that had different. Implementing green roofs via soilless culture systems as micro-scale farms led to increasing natural resource use efficiencies as well as producing fresh food. The integration of both techniques will create not just reduce pollution and climate change impacts but also for increasing food production and security in urban, enhance the lifestyle and increase public awareness of environmental issues. This process is profitable at any scale of operation.
城市和农村地区每天产生数千吨可生物降解的有机废物,造成了处理问题。通过采用不同的蚯蚓堆肥技术,城市有机废物可以转化为有价值的产出产品(蚯蚓堆肥、蚯蚓液和蚯蚓)。微型农场通过无土栽培系统实施绿色屋顶,提高了自然资源的利用效率,并生产了新鲜食品。这两种技术的结合不仅可以减少污染和气候变化的影响,还可以增加城市的粮食生产和安全,改善生活方式,提高公众对环境问题的认识。这个过程在任何规模的操作中都是有利可图的。
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引用次数: 0
Evaluation of pulp and paper-making potential of Acacia melanoxylon based on chemical composition grown at Chencha, Ethiopia 根据埃塞俄比亚陈查种植的化学成分评估黑木Acacia melanoxylon的制浆造纸潜力
Pub Date : 2022-11-23 DOI: 10.29328/journal.acee.1001044
Abara Lamesa
The study aimed to examine the chemical composition of Acacia melanoxylon wood as a potential raw material for pulp and paper manufacturing. Samples of Acacia melanoxylon were taken systematically based on tree height at the bottom (10%), middle (50%), and top (90%) of market height. The sample was sorted, dried, milled, and sieved, and all chemical compositions were determined by the standards outlined in ASTM except cellulose and hemicellulose, which were determined by the Kurschner-Hoffer and alkali extraction methods, respectively. The results of the study showed that the overall average values of chemical composition along tree height levels were 45.02%, 21.94%, 23.79%, 5.52%, 3.24% and 0.48% for cellulose, hemicellulose, Klason lignin, hot-water solubility, alcohol-benzene extracts, and ash content, respectively. Except for hot-water extractives, the chemical composition of the bottom and top portions differed significantly. Generally, this study suggests that the chemical composition of Acacia melanoxylon wood is well suited for pulp and paper production.
本研究旨在考察黑木Acacia melanoxylon木材的化学成分,该木材是制浆造纸的潜在原料。根据市场高度底部(10%)、中间(50%)和顶部(90%)的树高,系统地采集黑木Acacia melanoxylon的样本。对样品进行分选、干燥、研磨和筛分,除纤维素和半纤维素外,所有化学成分均通过ASTM中列出的标准测定,纤维素和半纤维分别通过Kurschner-Hofer和碱提取法测定。研究结果表明,纤维素、半纤维素、Klason木质素、热水溶性、醇苯提取物和灰分的化学成分沿树高水平的总体平均值分别为45.02%、21.94%、23.79%、5.52%、3.24%和0.48%。除热水提取物外,底部和顶部的化学成分差异显著。总体而言,本研究表明黑木Acacia木材的化学成分非常适合纸浆和纸张生产。
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引用次数: 1
ESG (Environmental, Social and Governance) in construction civil: concept that can contribute to the sector 土木建筑中的ESG(环境、社会和治理):可以为该行业做出贡献的概念
Pub Date : 2022-10-11 DOI: 10.29328/journal.acee.1001043
Soares Gilberto Gomes, Pereira Fabio Henrique
In contrast, other scholars argue that ESG ratings are ineffective, believing that ESG ratings lead companies to symbolically comply with external requirements to obtain various bene its, which may not necessarily signi icantly improve their corporate sustainability behavior Garvey, et al. [10]; rather, they represent institutional setback and can mislead stakeholders Avestyan, et al. [11] and Entine, et al. [12].
相比之下,其他学者认为ESG评级是无效的,认为ESG评级导致公司象征性地遵守外部要求以获得各种利益,这不一定能显著改善其企业可持续性行为Garvey等人[10];相反,它们代表着制度上的挫折,可能会误导利益相关者Avestyan等人[11]和Entine等人[12]。
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引用次数: 0
Study of ESG criteria and metrics for the construction industry 建筑业ESG标准和指标研究
Pub Date : 2022-10-11 DOI: 10.29328/journal.acee.1001042
Soares Gilberto Gomes, Pereira Fabio Henrique
its social participation and governance model has become increasingly important to investors. As an emerging topic in academia and industry, there is still a search for a broad materiality matrix, the main parameters of ESG, and using this matrix to compare companies in quantitative performance rankings, reducing the share of published qualitative negative screening reports. By experts. Few studies suggest ESG performance evaluation for some sectors of the economy [9-11]; however, there is an apparent dif iculty in inding an optimal solution for most companies.
它的社会参与和治理模式对投资者来说越来越重要。作为学术界和工业界的一个新兴话题,目前仍在寻找一个广泛的重要性矩阵,即ESG的主要参数,并使用该矩阵来比较公司的定量绩效排名,减少已发表的定性负面筛选报告的份额。由专家。很少有研究建议对某些经济部门进行ESG绩效评估[9-11];然而,对于大多数公司来说,寻找最佳解决方案显然存在困难。
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引用次数: 1
IZOMIN – Ecological solution for sustainable constructions IZOMIN -可持续建筑的生态解决方案
Pub Date : 2022-08-26 DOI: 10.29328/journal.acee.1001040
Cezar Bulacu
The depletion of non-renewable resources is followed by severe ecological and social impacts, and the heavy usage of raw, virgin resources leaves significant, long-lasting footprints. The transition to a more circular economy, where the value of products, materials and resources is maintained and circulated (by recycling activities) in the economy for as long as possible, is an essential contribution to the EU’s efforts to develop a sustainable, low carbon, resource efficient and competitive economy. In this context, ecological solutions consisting of materials that help carbon sequestration and necessitate small amounts of energy for production are becoming increasingly popular from a building construction point of view, namely: The raw material is cheap and in large quantities; has low thermal conductivity; are from a renewable source. The paper presents an analysis of IZOMIN an innovative thermal insulating product made from renewable or recycled resources and their main technical properties, the purpose being to inform the market in order to increase the present level of technical knowledge and technologies used to facilitate the implementation of buildings with high energy efficiency.
不可再生资源的枯竭会带来严重的生态和社会影响,对原始资源的大量使用会留下重大而持久的足迹。向更循环的经济转型,即产品、材料和资源的价值在经济中尽可能长时间地保持和流通(通过回收活动),是欧盟发展可持续、低碳、资源高效和有竞争力的经济的重要贡献。在这种情况下,从建筑施工的角度来看,由有助于碳封存和需要少量能源用于生产的材料组成的生态解决方案正变得越来越受欢迎,即:原材料便宜且大量;具有低导热系数;都是可再生能源。本文介绍了一种由可再生或回收资源制成的创新隔热产品IZOMIN及其主要技术特性的分析,目的是告知市场,以提高现有的技术知识和技术水平,以促进高能效建筑的实施。
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引用次数: 0
Environmental impact assessment of demolition of a building in India-A case study 印度一栋建筑拆除的环境影响评估——一个案例研究
Pub Date : 2022-08-03 DOI: 10.29328/journal.acee.1001039
Bansal Deepak, Kamat Murlidhar, Ralegaonkar Rahul, Bansal Yashika
Buildings are demolished, when they outlived their service life, become structurally/functionally unfit, or have been built illegally. In India, an RCC framed, 40-storied high-rise building, with a built-up area of about 75,000 sqm, built without relevant approvals along with lots of violations of building bye-laws, has been demolished. There is nothing new in this demolition process, but its effect on the environment is unavailable. A study has been conducted to understand the environmental impact of this demolition. Based on the main primary construction materials, the embodied energy of this demolished building has been computed as 7.07 GJ/sqm. The civil construction cost of the building was found to be about INR 200 Crores (USD 27 million, assuming a conversion rate of 1 USD 75 INR in the year 2022). Expected GHGs emissions corresponding to this embodied energy were estimated as 42.42 × 103 MT. Energy in the demolition of the building has been computed to be about 8.7 GJ/sqm. The situation, in which this building can be retrofitted and made compliant with local building bye-laws, has been analyzed for its environmental impact.
建筑物超过使用年限、结构/功能不合适或非法建造时,会被拆除。在印度,一座建筑面积约为75000平方米的碾压混凝土框架的40层高层建筑已被拆除,该建筑未经相关批准,并违反了许多建筑细则。在这个拆迁过程中没有什么新鲜的,但它对环境的影响是不可估量的。已经进行了一项研究,以了解这次拆除对环境的影响。根据主要的一次建筑材料,计算出该拆除建筑的蕴含能为7.07 GJ/ m2。该建筑的土建成本约为200亿卢比(2700万美元,假设2022年的折算率为1.75美元)。与此隐含能量相对应的预期温室气体排放量估计为42.42 × 103 MT。建筑物拆除的能量计算约为8.7 GJ/平方米。在这种情况下,这座建筑可以进行改造,并符合当地的建筑法规,对其环境影响进行了分析。
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引用次数: 0
Efficiency of different methods for calculating the mechanized tunnels face pressure considering an earth pressure balance 考虑土压力平衡的机械化隧道开挖面压力计算方法的效率
Pub Date : 2022-08-02 DOI: 10.29328/journal.acee.1001038
Rashiddel Alireza, Dias Daniel
Different methods for calculating and estimating a safe face pressure were proposed by researchers, which have some advantages and disadvantages. In each of these methods, some related parameters such as soil geotechnical parameters, dimensions of the tunnel, and geological conditions are used. In these methods, using a series of mathematical or empirical functions, the face pressure is calculated. In this study, the face displacements were obtained using the finite difference numerical FLAC3D, the COB (Netherlands Underground Science Center) empirical, and the Leca and Dormieux (1990) analytical methods. The impact of the COB method on different ground stiffnesses is studied and evaluated. The reference case of this research is the Tehran Metro Line 6 tunnel (excavation radius: 4.6 m).
研究人员提出了不同的安全工作面压力计算和估算方法,这些方法各有优缺点。在每一种方法中,都使用了一些相关参数,如土壤岩土参数、隧道尺寸和地质条件。在这些方法中,使用一系列数学或经验函数来计算面压力。在本研究中,采用有限差分数值FLAC3D、COB(荷兰地下科学中心)经验和Leca和Dormieux(1990)分析方法获得了地表位移。研究并评价了COB法对不同地面刚度的影响。本研究的参考案例为德黑兰地铁6号线隧道(开挖半径为4.6 m)。
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引用次数: 0
Defluoridation of water by the Homa* method, a co-precipitation technique using wood ash leachate and alum Homa*法除氟,这是一种利用木灰渗滤液和明矾的共沉淀技术
Pub Date : 2022-07-21 DOI: 10.29328/journal.acee.1001037
ML Kazungu, N.M.N. Wekesa, KB Balozi, OJ Manyala, KJ Maghanga, L. Etiégni
High fluoride level in drinking water is an endemic public health concern in East Africa. Unlike in Kenya where it is absent, the Nalgonda technique, a defluoridation method that uses two chemicals, alum, and CaO, has seen mixed results in its application and adoption in Ethiopia and Tanzania. This has been due to the low capacity of communities to manage the process and the breakdown in the supply chain of chemicals used in the technique. In the present study, we attempted to bridge the gap in the chemical deficit by investigating the possible substitution of CaO with leachate from wood ash, a by-product of wood combustion commonly found in Kenya. The leachate was prepared from one part of wood ash mixed with two parts of distilled water and stirred for 24 hours followed by decantation. The new technique, the Homa method, using alum and wood ash leachate was then tested on H2O samples from three areas in Kenya with high F- concentrations ranging from 5.1 mg L-1, 9.1 mg L-1 to 91.0 mg L-1. The determination of F- concentration by SPADNS Spectrophotometry was applied throughout the experiment. Four levels of alum i.e. 1%, 2%, 3%, and 4% were dosed on five volumes of water i.e. 100, 200, 300, 400, and 500 ml raw water at 5.1 and 9.1 mg L-1 F-. For water samples at 91.0 mg L-1 F-, the same volumes were treated with 5 higher alum levels i.e. 5%, 6%, 7%, 8%, and 9%. The final pH was then adjusted to 7 with ash leachate for defluoridation. The set-up was a factorial design experiment where the final F- concentration was the dependent variable and the volume of raw water, the percentages, and volume of alum and wood ash leachate constituted the different factors. A fitted multivariate regression model of the general form; where Y = Residual fluoride, X = wood Leachate volume, W = alum Concentration, X*W = Interaction α, β, γ were regression coefficients, ε = error term, showed that only in the Baringo area did we have an interaction between wood ash leachate and alum concentration significant (p < 0.05). Defluoridation occurred (p < 0.05) at as low as 10% and as high as 99%, depending on the initial F- content. Total coliform decreased from 310, 290 and 270 count/l respectively to zero. Unfortunately, high chemical and TDS (from 558 mg L-1 to more than 9,000 mg L-1) enrichment were recorded in addition to the mixed data on turbidity. The overall results show that wood ash can substitute CaO in the Nalgonda process. Further investigation is however required to make it applicable for potable water production.
饮用水中氟化物含量高是东非一个地方性公共卫生问题。与肯尼亚不同的是,纳尔贡达技术是一种使用明矾和CaO两种化学物质的除氟方法,在埃塞俄比亚和坦桑尼亚的应用和采用结果好坏参半。这是由于社区管理这一过程的能力低下,以及该技术中使用的化学品的供应链中断。在目前的研究中,我们试图通过研究木灰(肯尼亚常见的木材燃烧副产品)的渗滤液替代CaO的可能性来弥补化学缺陷。将一份木灰与两份蒸馏水混合,搅拌24小时后倒入渗滤液。这项新技术,即使用明矾和木灰渗滤液的Homa方法,随后在肯尼亚三个地区的水样品上进行了测试,这些地区的F浓度从5.1 mg L-1、9.1 mg L-1到91.0 mg L-1不等。整个实验过程中均采用SPADNS分光光度法测定F-浓度。四种水平的明矾,即1%,2%,3%和4%,分别在5体积的水,即100,200,300,400和500 ml原水中以5.1和9.1 mg L-1 F-给药。对于91.0 mg L-1 F-的水样,相同体积的水样分别用5种更高的明矾水平(5%、6%、7%、8%和9%)处理。然后用灰渗滤液将最终pH调整为7进行除氟。以最终F-浓度为因变量,原水体积、明矾和木灰渗滤液的百分比和体积为不同的因素,进行因子设计实验。一般形式的拟合多元回归模型;其中,Y =残余氟化物,X =木材渗滤液体积,W =明矾浓度,X*W =相互作用α, β, γ为回归系数,ε为误差项,表明只有在Baringo地区木灰渗滤液与明矾浓度之间存在显著的相互作用(p < 0.05)。根据初始F-含量的不同,除氟率低至10%,高至99% (p < 0.05)。总大肠菌群分别由310、290和270个/l降至零。不幸的是,除了浊度的混合数据外,还记录了高化学和TDS(从558 mg L-1到超过9,000 mg L-1)富集。综合结果表明,木灰在纳尔贡达工艺中可以替代CaO。然而,要使其适用于饮用水生产,还需要进一步的研究。
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引用次数: 0
Bioaccumulation of As, Cd, Cr, Cu, Pb, Zn in Ambrosia artemisiifolia L. in the polluted area by enterprise for the production and processing of batteries 电池生产加工企业对污染地区蒿中As、Cd、Cr、Cu、Pb、Zn的生物富集
Pub Date : 2022-07-13 DOI: 10.29328/journal.acee.1001036
Nataliia Ryzhenko, A. El Amrani, M. Giltrap, Tian Furong, Laptev Volodymyr
In this paper, the concentration of As, Cd, Cr, Cu, Pb, and Zn was investigated in soil and Ambrosia artemisiifolia L. sampling from polluted cite near the enterprises for the production and processing of batteries in the city of Dnipro in Ukraine. The obtained results of the study were provided to assess the plant species through bio-monitoring and phytoremediation. Though Ambrosia artemisiifolia L. is a weed that causes serious allergic reactions in humans, this plant species can also have a high bioaccumulative capacity regarding metals. The obtained results highlighted the metals’ significantly higher concentration in roots than in the inflorescence part in Ambrosia artemisiifolia L. Among all studied metals, Zn and Cu had the highest concentration in Ambrosia artemisiifolia L., while lead was characterized by the highest bioavailable content available to plant forms in the soil. The various distribution of As, Cd, Cr, Cu, Pb, and Zn was found in different parts of the plant. According to plant-up-taking indexes studied elements can be ranked in the following descending order: Cu > Zn > Cr > Cd > Pb. Ambrosia artemisiifolia L. could be proposed for phytoremediation in Zn, Cu, Cd, and Cr contaminated soils although this species is resistant to lead soil pollution.
本文研究了乌克兰第聂伯罗市电池生产加工企业附近污染城市土壤和蒿属植物样品中As、Cd、Cr、Cu、Pb和Zn的浓度。研究结果可为植物物种的生物监测和修复提供参考。虽然Ambrosia artemisiifolia L.是一种引起人类严重过敏反应的杂草,但这种植物对金属也有很高的生物积累能力。结果表明,在所有金属元素中,锌和铜在艾草中含量最高,而铅在土壤中具有最高的生物可利用性。As、Cd、Cr、Cu、Pb、Zn在植株不同部位分布不同。根据所研究的植物吸收指标,元素的大小依次为Cu > Zn > Cr > Cd > Pb。蒿属植物对Zn、Cu、Cd、Cr污染土壤具有较强的抗铅性,可作为修复Zn、Cu、Cd、Cr污染土壤的植物。
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引用次数: 1
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Annals of civil and environmental engineering
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