This article discusses the analysis of the physico-chemical parameters of water in the Serayu River, Banjarnegara, Indonesia during the dry and rainy seasons. The parameters to be measured are heavy metals, alkalinity, pH, temperature, TDS, TSS, and corrosivity. The sampling location is at the mouth of the Serayu River, where Serayu River water is one of the Mrica Reservoir water sources used for hydroelectric power plants. (PLTA). When the samples were taken in the rainy and dry season in 2018. The results showed that in the rainy season, the surface water pH of the Serayu River estuary was 6.61; the TDS was 178 mg/l; the TSS was 62 mg/l; the BOD was 6.66 mg/l; the COD was 33.31 mg/l; and the nitrate was 4.03 mg/l. Meanwhile, in the dry season, the pH was 8.15; the TDS wa 121 mg/l; the TSS was 55 mg/l; the BOD was 6.35 mg/l; the COD was 31.77 mg/l, and the nitrate was 3.08 mg/l. All physical and chemical parameters meet the quality standards required in Indonesian Government Regulation No. 82 of 2001 concerning Management of Water Quality and Class III Water Pollution Control. The surface water of the Serayu River estuary is weak corrosive which means it is safe for hydropower activities. In general, in the rainy season the chemical physics parameters of the Serayu River estuary water level are higher than the rainy season.
Pemuda adalah penggerak perubahan sosial. Artikel ini akan menganalisis hasil pengabdian masyarakat yang dilakukan ke pemuda untuk mempromosikan daur ulang sampah rumah tangga. Daur ulang sampah makanan menjadi fokus dalam kegiatan pengabdian kepada masyarakat ini karena banyak masyarakat yang masih belum sadar bahwa sampah makanan juga sangat penting untuk diperhatikan. Tiga topik utama yang akan diberikan dalam pengabdian masyarakat ini adalah daur ulang sampah makanan dengan composting, mengolah sampah makanan menjadi makanan binatang, menggunakan sisa bahan makanan untuk mengolah kembali menjadi kue. Topik-topik tersebut disampaikan ke pemuda untuk meningkatkan pengetahuan pemuda akan daur ulang sampah rumah tangga. Hasil dari pengabdian kepada masyarakat ini sesuai dengan tujuan dari kegiatan pengabdian masyarakat, yaitu meingkatkan pengetahuan pemuda akan daur ulang sampah sehingga dapat merangsang keinginan pemuda untuk memulai gerakan daur ulang sampah di masyarakat. Mereka juga punya keinginan untuk menyampaikan kembali materi daur ulang sampah yang disampaikan dalam program pengabdian kepada masyarakat ke pada masyarakat di sekitar mereka tinggal. Akan tetapi, kenaikan pengetahuan mereka tidak menaikkan keoptimisan mereka dalam melakukan daur ulang sampah. Beberapa di antara mereka masih skeptis pada kegiatan daur ulang sampah makanan akan berhasil diterapkan di masyarakat.
Environmental education creates environmental behaviour of people. Children are social agent who plays prominent role for shaping future life. In order to create environmental consciousness generation environmental education should be delivered to children. This paper reports community engagement activity through providing environmental education for first to third grade of primary school children. The delivery process of environmental education to children was transferred through movies and games. Two movies were played to children have attracted them to understand of the prominent of putting trash to the right litter bin. Meanwhile, game simulation for practicing waste separation resulted 96% of children were able to put rubbish in the right litter: organic, paper and plastic litter. Children who did wrong argue that they made mistakes due to time limit which influenced them to put to the right litter.
Entikong Lama is a densely populated residential area and the center of economic activity located on the riverbank. However, there was poor management of municipal wastewater that influences water quality of the river. Moreover, the river water is used by society for drinking, cooking, bathing, washing and toileting. Hence, municipal wastewater management is needed to prevent river from polluted municipal wastewater. This research is a social analysis to investigate social perspectives on wastewater management planning. This analysis is imperative to find out the social response and willingness of the society towards municipal wastewater management. The social survey was carried out using the interview and questionnaire method. This research found that about 93% of the household already had water closets (WC) and 83% already had septic tanks. The problem that occurs is that the septic tank has never been sucked up because there is no desludging service. This is due to the fact that there are no Fecal Sludge Treatment Plant (FSTP) facilities in the Entikong Lama. Later, communal Wastewater Treatment Plant (WWTP) planning program was offered to the society. About 72% of the household agreed to the communal WWTP program and the rest refused or abstained. Even though it reached high positive response from the society, there were some considerations of the communal WWTP program: the location of the communal WWTP, the clarity of those who manage the wastewater plant and the amount of fees charged to the society.
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