Публикации

Valchev, D., Ribarova, I., Blumenthal, E., Sgroi M. (2025) Is scaling plasma technology for per- and polyfluoroalkyl substances removal from leachate worthwhile: Life cycle assessment perspective. Results in Engineering, 27, 106081. https://doi.org/10.1016/j.rineng.2025.106081

Tsanov, E., Valchev, D., Borisov, B., Igneva, T. (2025) SUSTAINABLE CITIES: BEST RUNOFF MANAGEMENT PRACTICES AND CHALLENGES FOR THEIR APPLICATION IN BULGARIA. Conference paper in Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, 25 (6.1). DOI: 10.5593/sgem2025/6.1/s26.58

Tsanov, E., Valchev, D., Ribarova, I., Dimova, V. (2025) CLIMATE-RESILIENT STORMWATER MANAGEMENT: A PILOT STUDY ON THE RUNOFF MITIGATION EFFECTS OF AN EXTENSIVE GREEN ROOF. Conference paper in Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, 25 (6.1). DOI: 10.5593/sgem2025/6.1/s26.46

Valchev, D. (2025) PASSIVE TECHNOLOGY FOR TREATMENT OF ACID MINE DRAINAGE FROM THE AREA AROUND RADKA MINE IN BULGARIA. Conference paper in Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, 25 (1.1). DOI: 10.5593/sgem2025/1.1/s02.20

Valchev, D., Lazarova, S. (2025) WATER QUALITY AND TREATMENT OF ACID MINE DRAINAGE FROM THE ABANDONED MEDET DEPOSIT IN BULGARIA. Conference paper in Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, 25 (1.1). DOI: 10.5593/sgem2025/1.1/s02.23

Igneva, T., Borisov, B., Tsanov, E., Valchev, D. (2025) MODEL HYETOGRAPHS FOR SEWER NETWORKS IN BULGARIA. Conference paper in Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, 25 (3.1). DOI: 10.5593/sgem2025/3.1/s11.20

Valchev, D., Ribarova, I., Uzunov, B. & Stoyneva-Gärtner, M. (2025). Feasibility study of underexplored algal strains for nutrients removal from municipal wastewater. Journal of Ecological Engineering, 26(11), 185–204. https://doi.org/10.12911/22998993/207633

Ribarova, I., Valchev, D., Valentina, G. & Frugis, A. (2025). Presence of per- and polyfluoroalkyl substances in untreated leachate from regional municipal waste landfills: A first assessment for Bulgaria. Journal of Ecological Engineering, 26(7), 93–105. https://doi.org/10.12911/22998993/203255

Tsanov, E.; Valchev, D.; Ribarova, I.; Dimova, G. (2024) Quality of Harvested Rainwater from a Green and a Bitumen Roof in an Air Polluted Region. Civil Engineering Journal, 10(5). http://dx.doi.org/10.28991/CEJ-2024-010-05-015 

Valchev, D., Ribarova I., Borisov, B., Radovanov, V., Lyubomirova, V., Kostova, I., Dimova G., Karpuzova, O., Lazarova, S. (2024) Valuable elements in sludge from eight municipal wastewater treatment plants in relation to their recovery potential. Environmental Sciences Europe, 36(11). https://doi.org/10.1186/s12302-023-00837-x 

Valchev, D.; Ribarova, I.; Uzunov, B.; Stoyneva-Gärtner, M.; Lyubomirova, V. (2023) Reclamation Potential of Onsite Wastewater Post-Treatment with Microalgae: Chemical Elements Perspective. Processes, 11(6), 1819. https://doi.org/10.3390/pr11061819 

Tsanov, E.; Valchev, D.; Ribarova, I.; Dimova, G. (2023) Discussion on the Need for Harvested Rainwater Quality Standards Tailored to the Reuse Purpose. Processes, 11(3), 665. https://doi.org/10.3390/pr11030665 

Dimova G., Dimitrova S., Kostova I., Lazarova S., Ribarova I., Stoyanov D., Tonev R., Tsanov E., Valchev D. (2022) The Readiness of the Water Utilities in Bulgaria for Transition toward a Circular Economy. Processes, 10(6), 1156. https://doi.org/10.3390/pr10061156 

Valchev D., Ribarova I. (2022) A Review on the Reliability and the Readiness Level of Microalgae-Based Nutrient Recovery Technologies for Secondary Treated Effluent in Municipal Wastewater Treatment Plants. Processes, 10(2), 399. doi: https://doi.org/10.3390/pr10020399  

Valchev D., Ribarova I., Uzunov B., Stoyneva-Gärtner M. (2021) Photo-sequencing batch reactor with Klebsormidium nitens: a promising microalgal biotechnology for sustainable phosphorus management in WWTPs. Water Science and Technology. doi: https://doi.org/10.2166/wst.2021.149. 

Mirra R., Ribarov C., Valchev D., Ribarova I. (2020) Towards Energy Efficient Onsite Wastewater Treatment. Civil Engineering Journal, 6(7), doi: http://dx.doi.org/10.28991/cej-2020-03091542 

Вълчев Д. (2020) Относно приложимостта на закрити реактори със суспендирана биомаса от микроалги за пречистване на отпадъчни води. Годишник на УАСГ, София, Том 53, брой 3, стр. 795-808.

Вълчев Д. (2020) Открити реактори със суспендирана биомаса от микроалги: Световни постижения и предизвикателства. Годишник на УАСГ, София, Том 53, брой 1: стр. 31-42.

Вълчев Д., Рибарова И., Стойнева М., Узунов Б. (2019) Сравнение на две култури микроводорасли за допречистване на отпадъчни води в лабораторен цикличен реактор. Годишник на УАСГ, София, Том 52, Брой 3: стр. 819-832.