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The term circular economy (CE) refers to a new idea that transforms the old idea of the linear economy, which created the take-make-distribution-disposal-disposal model to take-makedistribution-consume back. When a product reaches its final stage, it will not be discarded; instead, it will be sent back in a form or quality different from the original. The 6R principles: reduce, reuse, recycle, recover, redesign, and remanufacture, are considered during the return process. Several challenges must be overcome for a circular economy to be implemented. However, no one has yet identified and analyzed the difficulties that hinder the implementation of a circular economy in Indonesia, especially in Jepara Regency. This study aims to identify and analyze the difficulties that hinder the implementation of a circular economy in waste management and make plans to overcome them. Five respondents from various stakeholder groups participated in this research, including local government, academics, and nongovernmental organizations. The questionnaire was processed using the Interpretive Structural Modeling (ISM) technique to identify the main obstacles. The results show that the critical factor inhibiting the implementation of a circular economy is the price for building a waste collection, storage, processing, and disposal (B8) system and government initiatives to decide on implementation (B2). Furthermore, based on respondents' assessments, the cost of collecting waste (B16) and the practice of disposing of hazardous waste (B1) waste that is not regulated is at the second level. Waste management requires a model that follows the circular economy principle to answer these inhibiting factors. The waste bank model is the most appropriate to apply to ensure the circular economy concept is running.

Electricity energy savings are needed, considering that currently new renewable energy has not developed much and still relies on fossil-based energy which is increasingly scarce. One component that consumes electrical energy is the use of lighting. In general, buildings as a center of activity currently

Al-Hikmah Islamic Boarding School in Bogor is one of the  Al-Quran educational institutions that has activities for washing clothes for students. The laundry activity is coordinated through washing activities that are centered in the laundry unit owned by the Islamic boarding school. The activity of washing clothes through laundry produces detergent waste water that has the potential to disrupt environmental quality. One of the problems faced is the absence of detergent wastewater management. Therefore, it is necessary to carry out counseling and training on the management of the generated wastewater. This activity is expected to reduce the potential for environmental damage due to the disposal of the waste water. In addition, through counseling can also increase the knowledge of laundry workers related to detergent waste water. The method in this activity is direct counseling and practice. In addition to counseling and training, this community service activity also creates a waste water management site that uses a portable water filter. The results obtained from this activity were that most of the participants knew the dangers of detergent wastewater to the environment and how to manage the wastewater before being discharged into the environment.