Author Guidelines
1. Scope
The Journal of Circular Environmental Infrastructure and Systems (CIRCULAR) publishes original scholarly works in the fields of environmental engineering and related disciplines, with particular emphasis on sustainable environmental systems, circular economy, life cycle thinking, resource efficiency, and environmental technologies.
The journal welcomes manuscripts covering, but not limited to, the following areas:
- Circular Environmental Systems Engineering
- Water Treatment Technology
- Waste and Material Management Technology
- Air Quality and Emission Control
- Renewable Energy and Bioenergy
- Sustainable Infrastructure and Settlements
- Environmental Policy and Management
- Climate Change Adaptation and Mitigation
- Islamic Environmental Ethics and Sustainability
- Social Innovation and Appropriate Environmental Technology
Submitted manuscripts must demonstrate originality, scientific rigor, and significant contribution to the advancement of environmental engineering and sustainable development.
2. Types of Manuscripts
CIRCULAR accepts the following categories of manuscripts:
- Original Research Articles
Original research articles presenting novel scientific findings, methodological developments, technological innovations, or applied research within the journal's scope.
Critical review articles that synthesize recent scientific developments, identify research gaps, and provide recommendations for future research.
3. General Manuscript Requirements
Authors are requested to ensure that manuscripts comply with the following requirements:
- The manuscript has not been previously published and is not under consideration by another journal.
- The manuscript is written in English or Bahasa Indonesia (English submissions are strongly encouraged).
- The manuscript follows the official CIRCULAR Manuscript Template.
- Manuscripts should normally contain 6,000–8,000 words, including references.
- Manuscripts must be submitted in Microsoft Word (.doc or .docx) format.
- Authors are encouraged to register and provide their ORCID iD.
- To ensure a double-blind peer review, the manuscript file must not contain information that identifies the author(s). Author names, affiliations, acknowledgements, and other identifying information should only be entered through the OJS metadata during submission.
4. Manuscript Structure
The manuscript should be organized in the following order:
- Title
- Author(s) Information
- Institutional Affiliation(s)
- Corresponding Author
- Abstract
- Keywords
- Introduction
- Materials and Methods (or Research Methodology)
- Results and Discussion
- Conclusion
- Acknowledgements (optional)
- References
The title should be concise, informative, and preferably not exceed 15 words.
The abstract should contain approximately 150–250 words and briefly present the background, objectives, methodology, principal findings, and conclusions.
Provide 3–5 keywords representing the main topics of the manuscript.
5. Manuscript Formatting
Authors must prepare manuscripts using the official CIRCULAR manuscript template.
General formatting requirements include:
- Font: Leelawade UI
- Font Size: 11 pt
- Line Spacing: 1.15
- Text Alignment: Justified
- Tables and figures must be numbered consecutively and cited within the text.
- All figures should have sufficient resolution and be accompanied by appropriate captions.
- Mathematical equations should be editable and sequentially numbered where applicable.
Authors are advised not to modify the overall formatting style provided in the journal template.
6. References
CIRCULAR adopts the IEEE (Institute of Electrical and Electronics Engineers) citation and referencing style.
Authors should ensure that:
- References are relevant, accurate, and up to date.
- A minimum of 15 references is required.
- At least 70% of the references should be from peer-reviewed journal articles published within the last 10 years.
- Every reference cited in the manuscript must appear in the reference list, and every item in the reference list must be cited in the text.
- References should include DOI information whenever available.
- In-text citations should be presented using sequential Arabic numerals in square brackets, for example: [1], [2], or [3]–[5].
- The reference list must be arranged in the order of citation rather than alphabetically.
Authors are strongly encouraged to use reference management software such as:
Reference Examples (IEEE Style)
Journal Article
[1] C. D. Adhani and J. Smith, "Circular economy implementation in wastewater treatment systems," Journal of Circular Environmental Infrastructure and Systems, vol. 1, no. 1, pp. 1–15, 2026, doi: xx.xxxx/xxxxx.
Book
[2] United Nations, The Sustainable Development Goals Report 2023. New York, NY, USA: United Nations, 2023.
Conference Proceedings
[3] A. Rahman and B. Lee, "Life cycle assessment for sustainable water treatment," in Proceedings of the International Conference on Environmental Engineering, Kuala Lumpur, Malaysia, 2024, pp. 45–52.
Website
[4] United Nations Environment Programme, "Global Environment Outlook," https://www.unep.org/, accessed Jun. 30, 2026.
Authors are responsible for ensuring that all references are formatted according to the IEEE referencing style. Manuscripts with improperly formatted citations and references may be returned for technical revision prior to peer review.
7. Supplementary Files
Authors are encouraged to upload supplementary materials that enhance the transparency and reproducibility of their research.
Examples include:
- Research datasets
- Survey questionnaires
- Experimental protocols
- Calculation spreadsheets
- Additional tables or figures
- Computer codes or software scripts
- Multimedia files supporting the research
Supplementary files should be clearly labeled and referenced within the manuscript where appropriate.
8. Submission Procedure
All manuscripts must be submitted electronically through the Open Journal Systems (OJS) platform.
Authors are required to:
- Register for an account in the journal system.
- Log in to the OJS platform.
- Complete all required metadata.
- Upload the manuscript and any supplementary files.
- Confirm submission.
The corresponding author will receive confirmation after successful submission.
9. Article Processing Charges (APC)
There are currently no submission fees or Article Processing Charges (APC) for manuscripts submitted to the Journal of Circular Environmental Infrastructure and Systems (CIRCULAR).
During the journal's inaugural publication period, all accepted manuscripts will be processed and published free of charge.
Any future changes to the APC policy will be announced through the journal website before implementation.
10. Publication Ethics
Authors are expected to comply with the journal's Publication Ethics and Malpractice Statement throughout the submission, review, and publication processes.
By submitting a manuscript, authors confirm that the work is original, free from plagiarism, and has not been submitted simultaneously to another journal.
11. Contact Information
For further information regarding manuscript submission, please contact:
Editorial Office
Journal of Circular Environmental Infrastructure and Systems (CIRCULAR)
Department of Environmental Engineering
Faculty of Science and Technology
Universitas Islam Negeri Maulana Malik Ibrahim Malang
Email: circular@uin-malang.ac.id
Privacy Statement
The names, affiliations, email addresses, and other personal information entered into this journal website will be used exclusively for the purposes of the Journal of Circular Environmental Infrastructure and Systems (CIRCULAR) and will not be made available for any other purpose or to any third party, except where required by law or for legitimate scholarly publishing purposes.
CIRCULAR is committed to protecting the privacy, confidentiality, and security of personal information belonging to authors, reviewers, editors, and readers in accordance with internationally recognized publication ethics and applicable data protection principles.
The information collected through the Open Journal Systems (OJS) platform is used solely for the following purposes:
- Managing manuscript submission, editorial, and peer review processes;
- Communicating with authors, reviewers, and editors regarding manuscript processing and publication;
- Publishing accepted scholarly articles;
- Supporting indexing, archiving, metadata dissemination, and long-term preservation of published content;
- Improving the quality and administration of the journal.
CIRCULAR does not sell, trade, rent, or otherwise disclose users' personal information for commercial purposes.
By registering an account and using this journal website, users acknowledge and consent to the collection, processing, and use of their personal information as described in this Privacy Statement.