https://oarepo.org/index.php/oa/issue/feed 2024-09-19T12:42:01+01:00 Open Journal Systems <p><strong>Open Access Repository</strong> is an Open Access directory of scientific journals based on open journal system (OJS). This repository indexes the volumes and issues of the open access journals those are based on OJS. This repository verifies the journals before inclusion for indexing. </p> https://oarepo.org/index.php/oa/article/view/4286 2024-09-19T12:42:01+01:00 Nuriddinova Gulshoda Olmaskulovna nuriddinova97@internet.ru

<p>Today, the spiritual and material heritage, customs, and ethical values of an individual’s identity as a member of a nation are considered essential in forming the spiritual and equitable qualities of the young generation. However, it has been observed that the historical criteria of values created by our ancestors are being lost across many generations. Ultimately, such neglect damages humanistic qualities and spiritual values and hinders the formation of the nation. To eliminate such shortcomings, it is appropriate to know, study, and apply the ethical, spiritual, and cultural values inherited from our ancestors in life.</p>

2024-08-08T00:00:00+01:00 Copyright (c) 2024 https://oarepo.org/index.php/oa/article/view/4285 2024-09-19T12:42:01+01:00 A. S. G‘aniyev G‘aniyeva@mail.uz A. V. Devyatkin G‘aniyeva@mail.uz

<p>This article highlights the great contribution of Central Asian encyclopedist Abu Rayhan Beruni to the history of sciences and the scientific heritage of mankind.</p>

2024-08-24T00:00:00+01:00 Copyright (c) 2024 https://oarepo.org/index.php/oa/article/view/4284 2024-09-19T12:41:59+01:00 Mr. Aditya Ramesh Nannaware adityajadhav.ahj@gmail.com Prof. P. A. Hangargekar adityajadhav.ahj@gmail.com Prof. D. C. Poul adityajadhav.ahj@gmail.com Prof. S. C. Wadne adityajadhav.ahj@gmail.com

<p>This study presents a novel Advanced Constructed Wetland (ACW) system for efficient wastewater treatment in hot climate regions. The ACW incorporates a unique arrangement of mixed media blocks, including soil, sawdust, zeolite, and biochar, to enhance pollutant removal. The system is designed to achieve high treatment efficiencies for organic matter, nutrients, and emerging contaminants, while minimizing the required footprint. Experimental results demonstrate the effectiveness of the ACW in treating domestic wastewater and septic tank effluent. The system effectively removes organic matter, nutrients, and pharmaceuticals and personal care products (PPCPs). The presence of ammonia-oxidizing archaea and bacteria in the media layers contributes to the conversion of ammonia to nitrogen gas. The ACW system offers a promising solution for sustainable wastewater management in arid and semi-arid regions. Its innovative design and high treatment efficiency make it a valuable addition to the available wastewater treatment technologies.</p>

2024-08-25T00:00:00+01:00 Copyright (c) 2024