Synthesis and Characterization of β-Cyclodextrin Modified Biochar Environmental Remediation Materials

In this paper, biochar (BC) was used as raw material, activated by deionizing aqueous solution, NaCl solution, CA solution and HCl solution respectively. Epichlorohydrin (EPI) was used as crosslinking agent, and β-cyclodextrin (β-CD) was used to modify biochar (BC). The prepared modified biochar materials were labeled with β-CDBC, β-CDBC-Na, β-CDBC-CA and β-CDBC-H, respectively. The infrared spectrum, X-ray diffractometer, scanning electron microscope and specific surface area of the four modified materials were tested. The results showed that the C-O stretching vibration peak at 1020 cm−1 of the modified materials was slightly offset compared with that of biochar. The characteristic absorption peaks of XRD pattern decrease obviously at 2θ = 26.7˚ and 29.5˚. It can be obviously observed on the electron microscope image that the surface is loaded or formed clathrates, and BET data and graphs also show that the specific surface area of the modified biochar is larger. Therefore, β-cyclodextrin successfully modified biochar and formed clathrates on the surface of biochar or was loaded in the pore structure of biochar, especially β-CDBC-CA achieved better modification effect. Because biochar and β-cyclodextrin raw materials are cheap, easy to prepare and green, and less prone to secondary pollution, it has a good advantage in environmental governance.

A Mechanism for Digital Finance to Drive Green and Low-Carbon Development

Given the global focus on green and low-carbon development and the increasing prominence of digital finance,it is particularly important to explore how to leverage digital finance to achieve these environmental goals.This study,through mechanism analysis,deeply examines how China’s digital finance promotes green and low-carbon development and elucidates the positive interaction between digital finance and the green industry.The study found that digital finance,through more flexible and efficient financial functions,alters the cost structure of carbon emissions,and reduces the risks and costs of green investments,thereby creating a cooperative green mechanism benefiting all parties,and guiding social groups toward a green and low-carbon transformation.Additionally,the rapid development of digital finance has strengthened the implementation of environmental protection policies,effectively promoted the expansion of the environmental protection industry,and established the green ethos as a mainstream concept in financial development.This study aims to provide reference perspectives and suggestions,assist policymakers in promoting the green and lowcarbon development of digital finance,and offer insights into the integrated development of digital finance and the green environmental protection industry.

Research on the Development of Modern Environment Art Pattern under the Perspectives of Green City and Environmental Protection

In this paper, we conduct research on the development of modem environment art pattern under the perspectives of green city and environmental protection. Environmental art and practical function refers to the practical use of it, fitness for a particular purpose or use value, is also the most concern of the basic user. Practical function is the most basic level in the environmental art design, environmental art and practical function and the traditional social system, history, ethnic customs, science, culture, economic development level, and there is a close relationship between geographical environment and so on. Environmental art including landscape and soft landscape two kinds big. Soft landscape plant configuration and plant layout as the main content, hard landscape sketch facilities including floor, ground shop, and environment and therefore, environmental art and practical function mainly reflects in the hard landscape design, the environment landscape facilities to provide practical purpose or use value. Our research proposes the related new idea that is meaningful.

Application of Key Technologies in Green School Buildings: Taking Sino-German Future City Primary School as an Example

Green building is a manifestation of the response to the national“dual carbon”strategy.With the large-scale promotion of green buildings,the country has successively issued multiple evaluation standards for green buildings.Schools are places for preaching,teaching,and solving doubts,and the campus environment plays an important role in improving students’learning efficiency and promoting their physical and mental health.This article is based on the“Green Building Evaluation Standards”GB/T 50378-2019,analyzing and exploring the integration and application of key technologies in green schools,providing reference for green building designers.

The environmental protection of apparel in 2019 starts with green fabrics and accessories

The data shows that the total amount of clothing sold worldwide in 2017 has doubled that of 2003. At the same time, hundreds of billions of yuan worth of clothes are eliminated every year, and the cumulative inventory of used clothes reaches as much as 100 million tons.

Coordinating environmental protection and agricultural development: a village-based case study for promoting green transformation

Balancing ecological preservation with sustainable agricultural practices is a global issue. Erhai Lake has felt this challenge keenly. To address it, in 2022, a Science and Technology Backyards(STBs) project was launched in Gusheng Village. The goal of this is to care for the environment while ensuring that farms and farmers can thrive sustainably. The uniqueness of the Erhai STB arises from its interdisciplinary integration, encompassing fields such as ecology, agronomy and social science, resulting in specifically-designed solutions for the Erhai context. While this model aligns with broader STB paradigms, its distinctive edge lies in technological innovation and robust support mechanisms for local agricultural stakeholders. This paper describes the methodology and outcomes of the STB initiative, highlighting its pivotal role in spearheading sustainable transition in Erhai. Preliminary findings underscore the potential of the STB model as an efficacious tool for harmonizing environmental conservation and agricultural practices, that are both financially and environmentally sustainable, rendering it a potential model for comparable regions in China and other counties.

Strategic Importance of China’s Foreign Aid for Environmental Protection

E nvironm ental protection effo rts are a key aspect of developmental aid which,in turn,is a crucial means to globally promote environmental governance.In recent years,China’s foreign aid initiatives for environm ental protection have developed rapidly,evolving into an integral part of international development aid due to its strategic significance.The establishment of the Green Belt and Road provided China with a rare opportunity to implement its plans for environmental protection aid.Under the Green Belt and Road,China has continuously improved systemic design and actively used non-governmental means to innovate aid models,thus substantially contributing to the environmental progress of aid recipients.Additionally,China’s outreach has significantly improved its international image,built on its soft power,and played a visible and positive role in expanding the international environmental protection market and promoting green development.

The Low-Carbon and Environmental Protection of Textile and Garment in China

It should be transformed from the extensive development in the past to the new normal form of environmentally friendly pattern of “save energy, lower consumption and less pollution” in the Textile and Garment. For the pollution problem in China’s textile and garment industry, the author particularly analyzes the pollution of the textile and garment industry mainly occurred in the process of textile and clothing production and sales in this article. Finally, the author puts forward detail measure to control the pollution from the two aspects and advocates the concept of low-carbon environmental protection and green lifestyle. The low-carbon environmental protection has become a phenomenon in Textile and Apparel.

中国环境保护税促进经济绿色转型模式创新

该研究基于中国省际面板数据,对环境保护税促进经济绿色转型模式创新进行了研究。结果表明:环境保护税对绿色全要素生产率促进作用显著,对于绿色技术创新,市场激励型环境保护税影响系数由负转正,转换速度为12.0153;对于绿色经济,命令控制型环境保护税和市场激励型环境保护税影响系数由负转正。在市场激励型规制强度低于门限值低区制,随环境保护税强度增加,影响绿色技术创新表现为显著抑制作用。建议要将环境保护税强度适度提高,推行市场激励型环境保护税政策。在短期内,提高环境保护税强度会对企业盈利有不利影响,需政府将政策扶持力度加大,推行绿色技术研发补贴、返还排污费、对环境税等激励性政策。以此为基础,对公司进行产品的生产技术创新,从而达到降低污染的目的,推动经济增长方式绿色转型。

环境规制与知识产权保护耦合协调对绿色增长的影响

“双碳”目标背景下,环境规制与知识产权保护的政策协同对破除绿色技术创新“双重外部性”困境,驱动绿色增长具有重要现实价值。基于2006—2020年省际面板数据,采用系统GMM模型,探讨环境规制与知识产权保护耦合协调对绿色增长的影响与中介机制。研究发现:环境规制与知识产权保护耦合协调对绿色增长的影响呈显著“U”型关系,目前全国耦合协调水平总体尚处于抑制绿色增长的阶段;在上述“U”型影响中,研发投入强度、资本错配在资本投入层面分别发挥部分中介效应,技术创新质量、技术交易活跃度在技术创新层面分别发挥部分中介效应,产业结构合理化、产业结构高级化在产业结构层面分别发挥部分中介效应。

财政环保支出是否存在涟漪效应?——基于绿色技术进步视角

基于2007—2020年中国地级市面板数据,利用空间杜宾模型考察地方财政环保支出的绿色技术进步涟漪效应,讨论区域异质性特征,并验证产业结构升级的传导作用。实证结果表明,城市间绿色技术进步存在空间自相关性。地方政府财政环保支出存在涟漪效应,即财政环保支出对本地绿色技术进步表现出“倒U型”效果,并对邻地绿色技术进步产生“U型”影响。异质性检验显示,经济规模较大、产业结构高级且人力资本集聚的城市,财政环保支出更加有助于推动本地绿色技术进步。另外,本地财政环保支出影响邻地产业结构升级,长期内调整邻地经济增长效益,进而激励邻地绿色技术进步。研究结论将为政府因地制宜调整财政环保支出、优化绿色技术进步体系提供一定参考。

纵向监管、地方选择性供地与产业结构绿色转型

地方政府的有效执行是中国式分权下提升中央发展战略实施绩效的关键,而中央政府对地方政府治理行为的有效监督则是其中至关重要的环节。本文基于2007—2019年中国微观工业用地供应以及中央环保督察的通报结果数据,采用广义双重差分法实证考察中央环保督察对地方政府选择性供地策略的影响及其机制。研究表明,中央环保督察促使地方政府降低污染密集型工业用地供应,增加清洁型工业用地供应,从而推动地区产业结构的绿色转型。机制分析发现,中央环保督察通过地方领导人职业发展激励机制以及产业转型能力机制对不同特征的城市工业土地供应结构策略产生异质性影响。本文结论对高质量发展背景下的央地互动关系与地方利用土地偏向性供给推动产业结构绿色转型具有政策启示。

井口点火放空装置在天然气井处理中的绿色环保作用评价

天然气是清洁能源,其开发利用有助于减少酸雨形成,减缓地球温室效应,从根本上改善环境质量。天然气在冬季生产过程中,经常需要井口放空处理,如果直接将天然气排入大气中,则会造成环境污染;如果不进行放空,则不利于气井的正常处理,存在环境污染与气井管理的矛盾。针对这个问题,引入了井口点火放空橇,通过管线与气井井口采气树相连接,利用车载小型气液分离器将天然气进行气液分离,液体排入储液灌,天然气则在井口直接点火燃烧,有效避免了环境问题,又解决了气井的处理需求。井口点火放空橇体积小,以车载方式移动,施工时安装连接方便,两个小时内可完成施工作业,投入产出比为1.00∶4.34,推广应用前景广阔。

小额信贷、绿色生产投入与农民收入增长——基于有机肥和化学农药施用成本

金融支持是推动农民长效增收的关键因素,其中小额信贷是重要的金融手段。通过将以有机肥和化学农药施用成本代表的绿色生产投入作为中介变量,构建并行中介模型,利用实地调研获得的401份样本数据实证分析小额信贷对农民收入的影响。结果表明:(1)小额信贷对农民收入具有直接的正向促进作用;(2)小额信贷对绿色生产投入中的有机肥施用成本增加和化学农药使用成本减少均产生正向作用;(3)小额信贷能够通过绿色生产投入间接对农民收入产生正向促进作用。为促进小额信贷更好地服务于农民收入增长,应建立政府与金融机构的风险共担机制,利用大数据技术完善小额信贷对农民的补贴制度,强化小额信贷机构和农民的环保意识,加强对有机种植和智慧农业的支持力度。

关于黑龙江省水煤浆产业发展的建议

为促进黑龙江水煤浆产业发展,分析水煤浆产业发展现状,探讨进一步加快发展水煤浆产业的建议,如政府主导统筹协调发展,地方推动配套工程示范,坚定落实绿色发展战略,增加核心技术储备等。

东道国双重环境规制对企业绿色转型的影响研究

在突出绿色发展理念和双循环发展战略背景下,绿色转型已成为中国跨国投资企业高质量发展的必由之路。驱动跨国投资企业绿色转型的因素不仅包括本国的制度和文化,而且包括东道国的环境规制。以2012—2021年中国A股上市公司为研究样本,实证检验东道国双重环境规制对企业绿色转型的影响。研究结果表明:东道国的正式环境规制和非正式环境规制均会对企业绿色转型产生倒U型影响;政府环保补助可以提升企业对东道国正式环境规制的容忍度,但是会抑制企业在东道国环境规制压力下的绿色转型程度;东道国环境规制主要通过海外收入的利润反馈机制和海外技术逆向溢出机制影响企业的绿色转型;企业内部的数字化程度和组织冗余水平会促进企业绿色转型,东道国正式环境规制对企业绿色转型的影响更为显著。从国际经济循环视角研究东道国制度对企业绿色转型的影响,对优化企业跨国投资经营和政府政策完善具有重要现实意义。

环境行政处罚下企业选择环保投资还是绿色创新——基于企业生命周期理论的解释

处于不同生命周期阶段的企业往往采取不同的战略倾向、组织结构及企业行为,在受到环境行政处罚后会做出差异化的环境行为选择。通过收集沪深A股上市公司的环境行政处罚数据,基于倾向性得分-双重差分法,从企业生命周期的视角实证检验了环境行政处罚对企业环保投资、绿色技术创新行为的影响。研究发现:环境行政处罚显著提高了企业的环保投资,但对绿色技术创新的影响不明显;分生命周期阶段看,受到环境行政处罚的成长期和成熟期企业均明显增加了环保投资,成熟期企业还会加大绿色技术创新力度,但衰退期企业的环境行为没有改变;多次处罚对企业的威慑效应更强,甚至衰退期企业在受到多次处罚后也会增加环保投资;环境行政处罚对重污染行业企业、非国有企业和环境信息披露水平较高企业的影响更显著。因此,环境监管部门应当基于企业生命周期构建更为精准的监管体系,提高环境监管的精度与准度,以罚促改,全面优化企业环境行为。

金融科技能提升城市包容性绿色全要素生产率吗?

包容性绿色全要素生产率强调绿色发展、社会公平与经济增长协调并进,是判断城市经济发展质量的重要依据。本文以2011—2019年中国284个地级及以上城市的数据为样本,实证检验了金融科技对城市包容性绿色全要素生产率的影响及作用机制。研究发现,金融科技对城市包容性绿色全要素生产率具有明显的促进作用,主要表现在技术进步指数显著提升,这一结论在经过一系列内生性处理和稳健性检验后依然成立。机制分析显示,金融科技能够通过促进绿色创新、增加环保投资以及激发创业活力提升城市包容性绿色全要素生产率。异质性分析表明,金融科技对包容性绿色全要素生产率的提升作用在人力资本水平、金融发展水平和基础设施水平较高的城市中更为明显。本文的研究为加快实现经济绿色发展和包容性增长的“双重红利”提供了重要的经验证据。

地方政府债务、异质性环境规制与绿色技术创新——基于247个城市的面板数据分析

本文基于2011~2021年我国247个地级及以上城市的面板数据,实证检验了地方政府债务对绿色技术创新的影响,并探索了异质性环境规制在其中起到的中介效应。研究发现:(1)地方政府债务对绿色技术创新存在总体的促进作用;(2)从机制来看,地方政府债务通过削弱指导性环境规制、增强处罚性环境规制倒逼企业等主体促进绿色技术创新;(3)产业结构升级以及数字经济水平均对地方政府债务影响绿色技术创新存在正向的调节效应。