旋流除砂系统排砂管路改造与优化运行

针对南方某污水处理厂旋流除砂系统由于设计及设备选型不合理,造成排砂管路反复堵塞,使系统长期处于"瘫痪"状态,通过水力学分析结合实际运行工况提出改进措施,并对系统除砂性能进行测试,依据测试结果提出沉砂池优化运行方案。结果表明,旋流除砂系统排砂管路高度应满足气提扬程要求,经改造后,系统未发生堵塞现象,优化运行后的系统出砂量由平均240 kg/d增加到300 kg/d,且出砂中粒径小于0.3 mm砂粒所占比例由40%提高至78%,砂粒表面的附着有机物含量由前期的10%下降到4%。     

中国西部贫困地区可持续发展研究

本文探讨了贫困与可持续发展的相互关系。在系统阐释中国西部贫困地区可持续发展面临的现实问题、困难和障碍的基础上,着重围绕西部贫困地区可持续发展的基本内容和实施途径进行了综合性的分析和研究。     

新型高效全自动中水过滤塔

介绍了一种新型高效中水处理设备——全自动中水过滤塔,它在中水过滤材料、清污方式、消毒手段以及自动控制和易用性等方面有独特的创新性。     

美国环境执法特点及其启示

从美国环保局的权力、地位、守法援助、守法激励、守法监督、民事与刑事执法、经济处罚额计算以及公众参与和执法协调等方面总结了美国的环境执法经验,得出兼顾环境和市场经济目标,执法与守法相结合,恩威并重、科学执法,民主、公平执法4条执法启示,供我国环境执法借鉴.      

推进厕所革命需要解决的技术问题及措施建议

厕所问题是当前城乡发展不平衡与不充分的最直接体现。推进厕所革命是一项系统工程,不仅对材料、能源、环保、建筑等产业技术提出新的要求,也是生态文明建设关键一环,涉及生态环保、卫生健康、乡村建设、文明进步、可持续发展等多重目标。近年来,我国开展大量农村厕所整治工作,取得阶段性重要成果,但在厕所系统性、理念意识、安全舒适、技术适应性等方面仍有差距。建议围绕厕所革命的阶段性多目标要求进行系统部署,以整体提升厕所系统的环保卫生、安全舒适、经济持续性为核心,准确把握技术创新发展路径,增强多技术方案供给和商业模式选择,增强农民群众在乡村振兴中的获得感。     

区块链技术在碳交易体系中的应用研究

完善碳交易市场,优化碳交易机制是我国实现“双碳”目标的重要保障。为解决我国传统中心化碳交易市场中存在的交易低效、监管困难、行政干预过度等机制性问题,本文在剖析碳交易流程功能需求和区块链技术适用性的基础上,提出了一套基于区块链技术的去中心化、自动化、可信任的创新碳交易体系构建方案。首先从整体层面出发,依据实际业务场景设计了基于 Fabric联盟链的碳交易区块链总体架构,然后对交易体系进行细分,从碳交易二级市场框架、碳交易方法、碳交易监管、碳交易激励与惩罚四个维度探讨了身份认证、智能合约、数据溯源、信用代币等区块链技术的具体应用方法。研究表明,区块链技术的引入推动了碳资源向数字凭证转化,实现了碳交易的自动化和智能化,提升了交易效率;链式数据结构和分布式共识机制扼杀了“舞弊”和“寻租”空间,为实时动态监管和协同监管创造了条件;碳交易信用代币的发行与应用提供了更为缓和的治理方式,避免了行政强制手段对市场的过度干预,优化了政府的治理能力,也进一步提升了碳交易的效率性和公平性。     

Fostering green innovation in achieving sustainable performance

Nowadays, sustainable development has been underlined as critical in relation to firm performance and is becoming a global concern. Green innovation is believed to be a fundamental approach to environmental protection and determines the firms' competitiveness. Many factors drive the success of adopting green innovation. Unfortunately, many studies generally focus on large industries. This study investigates the influence of the firms' external pressure and internal factors simultaneously on the adoption of green innovation in small enterprises in developing countries. We conceptualized the four factors that may determine the successful implementation of green innovation to achieve sustainable performance, including environmental regulations, customer pressure, resources and capabilities, and management commitment. Data were gathered from 160 food sector SMEs in Malang Raya, Indonesia. Data analysis used structural equation modeling with the partial least squares approach (SEM-PLS). The empirical results conclude the positive effects of customer pressure, resources and capabilities, and commitment management on green innovation, which in turn had a positive on sustainable performance. The results also confirmed that environmental regulations did not significantly impact green innovation. The findings provide valuable contributions and encourage SMEs to foster green innovation's potential for better sustainable performance and competitive advantage. The findings also offer integrated perspectives on how firms should be more innovative toward sustainability.     

国家生态工业示范园对企业绿色创新的影响研究

国家生态工业示范园是中国工业绿色转型的主要载体。本文基于创建国家生态工业示范园为切入点,采用多期双重差分法（difference-in-differences, DID）和2002-2017年上市公司的面板数据,实证考察了国家生态工业示范园对企业绿色创新的影响。研究发现：①创建国家生态工业示范园显著促进了企业绿色创新,平均提升了上市公司绿色发明专利0.883项,绿色实用专利0.465项;②事件分析表明,国家生态工业示范园与企业绿色创新之间存在着“先增后降”的倒“U”形关系;③国家生态工业示范园显著增加了企业环保投资,抑制了企业排污费,但与政府环保补助之间没有必然联系;④国家生态工业示范园更有助于非国有企业、经营状况比较好的企业以及东部经济发达地区的企业绿色创新,并且其绿色创新效应不集中于特定行业（如重污染行业）。本文从微观企业层面为理解创建国家生态工业示范园的经济社会效益提供了启发。     

Team creativity/innovation in culturally diverse teams: A meta‐analysis

This meta‐analysis investigates the direction and strength of the relationship between diversity in culturally diverse teams and team creativity/innovation. We distinguish the effects of two diversity levels (i.e., surface level vs. deep level) in culturally diverse teams and examine the moderators suggested by the socio‐technical systems framework (i.e., team virtuality and task characteristics in terms of task interdependence, complexity, and intellectiveness). Surface‐level diversity in culturally diverse teams is not related to team creativity/innovation, whereas deep‐level diversity in culturally diverse teams is positively related to team creativity/innovation. Moreover, surface‐level diversity in culturally diverse teams and team creativity/innovation are negatively related for simple tasks but unrelated for complex tasks. Deep‐level diversity in culturally diverse teams and team creativity/innovation is positively related for collocated teams and interdependent tasks but unrelated for noncollocated teams and independent tasks. We discuss the theoretical and practical implications.     

Introducing changes at work: How voice behavior relates to management innovation

This multistudy research examines the unit‐level relationship between promotive voice behavior and management innovation. Study 1 utilizes multisource data from 62 work units and reports that willingness to discuss ideas mediates the unit‐level relationship between promotive voice and management innovation. The results of Study 1 also show that the unit's available resources make the relationship stronger between promotive voice and willingness to discuss ideas. Study 2 employs a scenario‐based design to constructively replicate and expand the results of Study 1, utilizing a sample of 100 working adults. The results of the second study also show that resource availability positively moderates the relationship between promotive voice and willingness to discuss ideas. Furthermore, Study 2 shows that the indirect effect of promotive voice on management innovation through willingness to discuss ideas is stronger when more resources are made available to the work units. This moderated‐mediation effect is shown to be significant using two different operationalizations of management innovation. The implications for theory and practice are discussed.