Eawag: Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland.
CSEI-ATREE, Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Sriramapura, Jakkur, Bengaluru 560064, Karnataka, India.
Sci Total Environ. 2023 Oct 15;895:165042. doi: 10.1016/j.scitotenv.2023.165042. Epub 2023 Jun 23.
In dealing with water pollution and freshwater scarcity, on-site treatment and reuse of domestic wastewater has shown to be a promising solution. To increase on-site wastewater treatment and reuse, some cities, among them Bengaluru in India, have mandated the installation and use of the necessary technology in certain building types. However, even with a mandate, a successful and sustainable implementation of the technology, including reliable operation, monitoring, and maintenance, depends on the acceptance (i.e. positive valuation) of the technology and its use by the (prospective) users. Literature on technology acceptance indicates perceived costs, risks, and benefits of the respective technology as key predictors of acceptance. Therefore, the present online study assessed this relationship for on-site systems in Bengaluru. The relation was analysed separately for mandated users of on-site systems (N = 103) and current non-users (i.e. potential prospective users, should the mandate be expanded; N = 232), as the perceptions might differ between the two groups, due to the personal experience with the technology among users. The results show that for mandated users and non-users, acceptance of on-site systems is explained by perceived benefits only, namely a positive image of users, environmental benefits, and, only for non-users, also financial benefits for the city. The findings suggest that interventions aimed at promoting on-site systems should include emphasis on the benefits of on-site systems. Whenever possible, interventions should be tailored to the target group's individual cost, risk, and benefit perception.
在处理水污染和淡水短缺问题时，现场处理和再利用生活污水已被证明是一种有前途的解决方案。为了增加现场污水处理和再利用，一些城市（包括印度班加罗尔）已强制要求在某些建筑类型中安装和使用必要的技术。然而，即使有了强制要求，如果要成功和可持续地实施这项技术，包括可靠的运行、监测和维护，还取决于（潜在）用户对技术的接受程度（即积极评价）及其使用。关于技术接受的文献表明，技术的感知成本、风险和收益是接受程度的关键预测因素。因此，本在线研究评估了班加罗尔现场系统的这种关系。分析了现场系统的强制用户（N=103）和当前非用户（即如果扩大授权，可能的潜在未来用户；N=232）之间的关系，因为由于用户对技术的个人经验，两组之间的看法可能有所不同。结果表明，对于强制用户和非用户，对现场系统的接受程度仅由感知收益解释，即用户的积极形象、环境效益，而且仅对非用户而言，还有城市的经济效益。研究结果表明，旨在推广现场系统的干预措施应强调现场系统的好处。只要有可能，干预措施应根据目标群体的个人成本、风险和收益感知进行调整。
