Medan City is one of the largest cities in Indonesia. Geographically, Medan City is located between coordinates 2° 27’ – 2° 47’ North Latitude and 98 35’ – 98° 44’ East Longitude. The regional government of Medan is currently carrying out various efforts to overcome environmental problems in Medan City. This study aimed to analyze priority issues that need to be addressed in Medan City. This study was conducted from May to October 2018. The research consisted of several stages of activities, namely: desk review, public consultation with stakeholders, and data analysis. The desk review was conducted to examine various regulations and documents related to the management of Medan’s natural and environmental resources and the environmental problems of Medan City. Public consultation with stakeholders was carried out with focus group discussions (FGD), filling out online questionnaires, and auditing with stakeholders. Priority issues were analyzed using the Driving Force, Pressure, State, Impact and Response (DPSIR) approach. Based on an integrated approach, the main issues obtained were the main problems in Medan, namely: Garbage, Water quality and quantity, and Air quality. The three main issues require rapid handling to prevent environmental damage in Medan City.
ABSTRAK Limbah yang dihasilkan dari industri tekstil berupa limbah cair yang keruh, berwarna dan sulit dihilangkan sehingga dapat mengganggu ekosistem perairan. Limbah hasil pencelupan dapat mencemari lingkungan karena menggunakan zat warna azo yang sulit untuk didegradasi. Salah satu metode yang dapat diaplikasikan untuk mengatasi ini adalah fotodegradasi. Dalam artikel ini dilaporkan sintesis fotokatalis bentonite-ZnO dan aplikasinya dalam fotodegradasi zat warna dalam limbah pencelupan. Karakterisasi fotokatalis dilakukan dengan melihat kristalinitas kompositnya menggunakan X-Ray Diffraction (XRD), luas permukaannya dengan metode methylene blue serta penentuan efektivitas degradasi dengan dan tanpa sinar. Difraktogram yang dihasilkan menunjukkan beberapa puncak dengan intensitas tinggi: pada 2? = 20,51° (d=4,32Å) yang menunjukkan adanya mineral kuarsa sedangkan pada 2? = 26,28° (d=3,39Å) mengindikasikan illit. Puncak khas dari ZnO ditunjukkan pada pola difraksi 2? = 36,18° (d=2,46Å) dan 2? = 59,64° (d=1,54Å). Luas permukaan bentonit dan bentonit-ZnO berturut-turut 183,0665 dan 180,2460 m2/g. Kondisi optimum yang diperoleh dalam mendegradasi zat warna limbah industri pencelupan yaitu massa 100 mg pada pH 2 dan waktu irradiasi atau pengadukan dalam gelap selama 45 menit. Degradasi dengan sinar lebih efektif (95,66 ± 0,16%) dibandingkan tanpa sinar (73,28 ± 0,55%) yang menunjukkan peran komposit bentonite-ZnO sebagai fotokatalis. Kata kunci: Bentonit-ZnO, Fotodegradasi, Limbah Industri Pencelupan ABSTRACT Liquid waste generated by the textile industry is typically murky, intensely coloured, and hard to treat. As a consequence, it can pollute the aquatic ecosystem. One potential method to overcome this problem is photodegradation to break the dye molecules down. In this paper the synthesis of bentonite-ZnO composite and its application as a photocatalyst are reported. The composite was prepared by sonicating a mixture of zinc acetate and bentonite. The characterization of the composite was conducted using X-Ray Diffraction (XRD) and methylene blue method to determine its surface area, and its degradation capacity as photocatalyst to degrade the dye waste. The diffractogram reveals several peaks with high intensity, i.e. at 2? = 20,51° (d = 4,32Å) indicating mineral quartz, and at 2? = 26,28° (d = 3,39Å) showing Illite. The identifying peaks of the ZnO are in the diffraction pattern of 2? of 36,18° (d = 2,46Å) and 59,64° (d = 1,54Å). The surface area of the bentonite and bentonite-ZnO are 183,0665 and 180,260 m2/g respectively. The optimum conditions obtained for the dye degradation are 100 mg photocatalyst at pH 2 and irradiation time of 45 minutes. Degradation under UV light is more effective with a degradation percentage of 95,66 ± 0,16% than that in the dark, which is 73,28 ± 0,55%. This shows that the composite plays its role as a photocatalyst for the degradation. Keywords: Bentonite-ZnO, Dyeing Industrial Waste, Photodegradation.
Cases with SARA nuances in Indonesia, have the effect of not being free for adherents of religions to worship according to their respective beliefs. The case that occurred was triggered by a misunderstanding in interpreting the main teachings of religion. The emergence of religious extremist groups that actually have the potential to damage national unity has urged the government to take concrete steps regarding religious moderation. The basic principles of religious moderation, namely balance and justice, are offered as a solution to this problem. The internalization of religious moderation is expected to foster religious adherents to be tolerant and socially harmonious. This program is important, because intolerance correlates with the inability of Human Resources to think, which results in threatening welfare, amidst the onslaught of IoT, Artificial Intelligence and Big Data. For this reason, internalization of religious moderation is examined in relation to improving the quality of Hindu human resources. This research uses qualitative methods, with the type of literature research. Presented research results namely; religious moderation from a Hindu perspective, strategies to strengthen religious moderation and improve thinking skills for creative and tolerant Hindu human resources.
<p><em>The increasing number of cases of violence that have occurred in the community lately, have been carried out by children to other, making parents worried. They feel that the environment in which their children are growing is no longer conducive. Furthermore, parents are convinced that most children today need appropriate help and treatment. There are three trends of parenting applied by parents to their children, namely: authoritarian, permissive and democratic parenting. These three patterns are influenced by the factors of maturity, education and diversity of parents. Caregiving cannot be separated from the understanding that every child experiences a sensorimotor, pre-operational, concrete operational and formal operational phase throughout their lifetime. This work describes descriptively about parenting as taught and inspired by Maharsi Chanakya in his work Niti Sastra. He said that it is better to have one suputra child, than one hundred kuputra children, and a suputra child who brings glory to his family. For this reason, parenting when children aged zero to five years should be spoiled, when children aged six to fifteen can be cared for by punishments, and when children are sixteen years and over, children can be educated by means of friendship.</em></p>
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