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Ni Nyoman Nepi Marleni
Universitas Gadjah Mada
Arts Humanities Civil Engineering, Building, Construction & Architecture Education Environmental Science Public Health Social Sciences

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Pemberdayaan Masyarakat Melalui Pembentukan Kampung Organik Pemula di Perumahan Muria Kabupaten Kudus Ermawati, Ristie; Marleni, Ni Nyoman Nepi; Widodo, Sarno
Community Empowerment Vol 1 No 1 (2016)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (449.544 KB)

Abstract

Komitmen Pemerintah Kabupaten Kudus beserta masyarakat Kabupaten Kudus dalam hal pengelolaan sampah sangat terlihat nyata, hal ini dibuktikan dengan bertambahnya jumlah bank sampah baik yang dikelola oleh masyarakat umum maupun oleh masyarakat/warga sekolah setiap tahun. Pengelolaan sampah yang saatini dilakukan lebih banyak ke pengelolaan sampah anorganik. Maksud dari inisiasi pembentukan kampung organik adalah terciptanya lingkungan yang bersih, indah disertai dengan terjadinya perbaikan kualitas lingkungan alam secara berkesinambungan dengan melibatkan masyarakat dalam pengelolaan dan penggunaan hasil olah sampah. Kegiatan inisiasi pembentukan kampung organik ini telah memberikan pembekalan kepada masyarakat untuk terlibat dalam pembentukan kampung organik dan juga membahas isu-isu positif maupun negatif terkait dengan komponen kegiatan kampong organik. Selain itu pembekalan tambahan dalam budidaya tanaman pestisida organik, tanaman toga, PKK Smart dan biopori juga diberikan untuk mendorong masyarakat terlibat dalam kegiatan ini. Kegiatan ini juga memberikan strategi alternatif apabila pengelolaan sampah organic rumah tangga dikelola secara komunal dalam skala RW, misalkan dengan adanya pengkomposan yang dilakukan dalam skala RW.
Pelatihan Pembuatan Paving Block dan Eco-Bricks dari Limbah Sampah Plastik di Kampung Tulung Kota Magelang Widodo, Sarno; Marleni, Ni Nyoman Nepi; Firdaus, Nitis Aruming
Community Empowerment Vol 3 No 2 (2018)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (342.09 KB) | DOI: 10.31603/ce.v3i2.2460

Abstract

Produksi sampah plastik di Indonesia mencapai 5.4 juta ton per tahun. Berdasarkan data statistik persampahan domestik Indonesia jumlah sampah plastik tersebut sebesar 14% dari total produksi sampah di Indonesia. Pemanfaatan sampah plastik telah dilakukan dengan cara membuat kerajinan, aspal, dan berbagai produk lainnya. Namun penggunaan plastik untuk produk kerajinan tidak menyelesaikan masalah karena pada satu saat produk tersebut akan rusak dan kembali lagi menjadi sampah. Maka dari itu di perlukan suatu teknologi yang dapat mengubah plastik menjadi produk yang berumur lama sehingga tidak kembali menjadi sampah dalam waktu yang singkat. Penggunaan sampah plastik untuk paving block merupakan salah satu solusi untuk mendaya gunakan plastik dalam jangka waktu yang lama. Demikian juga dengan penggunaan sampah dari botol plasti menjadi eco-brick. Pemberdayaan masyarakat untuk mengolah sampah plastik menjadi sesuatu yang berguna dalam jangka waktu yang lama adalah salah satu kunci keberhasilan program daur ulang limbah plastik. Maka dari itu dilakukan pelatihan dan pendampingan masyarakat dalam memanfaatkan sampah plastik sehingga menjadi sesuatu yang berguna. Dari hasil kegiatan ini warga kampung Tulung khususnya RW 2 mampu mempraktekkan pembuatan paving block dan eco-bricks. Selanjutnya Ecobricks ini akan digunakan untuk pembangunan fasilitas-fasilitas ruang publik dan ruang terbuka hijau. Sedangkan Pembuatan paving berbahan plastik akan ditindak lanjuti dengan melakukan konsultasi dengan Dinas Perindustrian Kota Magelang.
Pembangunan Ruang Terbuka Hijau (RTH) di Kampung Tulung RW.02 Kota Magelang Marleni, Ni Nyoman Nepi; Legono, Djoko; Triatmodjo, Bambang; Istiqomah, Nurul Alvia
Community Empowerment Vol 5 No 2 (2020)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (870.651 KB) | DOI: 10.31603/ce.v5i2.4060

Abstract

Ruang Terbuka Hijau (RTH) sangat penting untuk suatu perkotaan karena selain menjadi fungsi ekologis, RTH juga dapat memelihara fungsi sosial budaya, dan estetika suatu wilayah perkotaan. Pembuatan RTH di RW 02 Kampung Tulung, Kecamatan Magelang Tengah, Kota Magelang dinilai penting untuk mengimbangi tingginya densitas penduduk ditambah dengan adanya beberapa bengkel motor dan mobil yang berpotensi pada pencemaran udara yang tinggi. Selain itu, RW ini minim ruang publik yang dapat mendukung sarana berinteraksi warga. Pembangunan RTH ini bertujuan untuk merancang dan membangun RTH yang dapat memenuhi fungsi ekologis, ekonomi, sosial-budaya, dan estetik. Dasar perencanaan kebutuhan luas RTH minimum dihitung dengan metode berdasarkan jumlah penduduk yang merujuk pada Peraturan Menteri Pekerjaan Umum No. 05 tahun 2008. Konsep yang digunakan yaitu pengembangan RTH eksisting dengan penambahan tanaman fungsional, fasilitas dan teknologi ramah lingkungan pada lahan seluas 461,58 m2. Teknologi ramah lingkungan yang dibangun berupa 48 lubang resapan biopori sebagai kompensasi resapan untuk air limpasan dari lahan yang diperkeras untuk fasilitas olahraga. Fasilitas bangku, mainan, dan rumah organik dibangun guna mendukung fungsi sosial budaya, ekonomi dan estetik. RTH yang telah dibangun menjadi pusat kegiatan warga dalam bidang kesehatan dan inovasi serta berhasil menjadi Juara Harapan 1 untuk lomba taman se Kota Magelang tahun 2019 yang diselenggarakan oleh Badan Lingkungan Hidup (BLH) Kota Magelang.
A Critical Review of Wastewater Resource Recovery Implementation in Indonesia Ni Nyoman Nepi Marleni; Gema Sakti Raspati
Journal of the Civil Engineering Forum Vol. 6 No. 1 (January 2020)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.407 KB) | DOI: 10.22146/jcef.52755

Abstract

Wastewater has been recognized as a resource due to its large quantities, and it contains many valuable resources that can be converted into valuable material. Reusing or recovering resources from wastewater can reduce the environmental footprint of wastewater treatment, minimize the contamination and ensure the availability of valuable resources for the human being. The ultimate aim of wastewater resource recovery (WRR) is to create a sustainable and resilient community which is very relevant in Indonesia as this country experiences many natural or human-made disaster. To have an effective implementation, therefore, it is crucial to identify the barriers or supporting factors in its implementation of Wastewater Resource Recovery, which can be different for many regions. Through extensive literature studies, this study intends to review the possibility of WRR implementation in Indonesia.  This study discusses Indonesia policy/regulation about wastewater management across all-region in Indonesia, identify barriers in WRR, compares global trends of wastewater management to Indonesia practice and list wastewater resources that potentially can be recovered in Indonesia. From the review, barriers of WRR implementation in Indonesia is most probably due to the policy and regulation of wastewater management which many of them did not support the option of WRR, instead of suggesting only safe discharge option. However, some regulations have mentioned the utilization of wastewater by-product, but it is limited only to treated water utilization. Other obstacles are social acceptance and distance between recovered material supply and demand. Social acceptance includes the human perception regarding the health risk associated with wastewater by-product. Religion also could be a potential barrier that needs to be handled in the implementation of WRR. This study could give new insight into the current state of wastewater resource recovery initiative in Indonesia; thus the strategy to overcome the barriers could be designed.
The Application of Combined Phytoremediation Greywater Treatment in A Single House Ni Nyoman Nepi Marleni; Ristie Ermawati; Nurul Alvia Istiqomah
Journal of the Civil Engineering Forum Vol. 7 No. 1 (January 2021)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.58218

Abstract

A report showed 22% of households in Indonesia did not have a proper sanitation facility in 2018 and this caused the potential discharge of their wastewater directly to the surface water, thereby, polluting the water and its surrounding environment. The quality of water resources is also declining nationwide due to pollution and this affects the cost of water treatment, therefore, it is necessary to determine the most effective treatment method to reduce this pollution. However, one of the breakthroughs observed to have met the criteria of low cost, simple operation and maintenance, and energy-saving is greywater treatment using plants (phytotechnology) combined with solar ultraviolet (UV) system. This research was, therefore, conducted to evaluate the performance of the coupled greywater treatment and investigate the possibility of its implementation in the actual condition of a selected single house. Moreover, the physical treatment and phytoremediation were combined with solar disinfection treatment, and the units selected include a collection and sedimentation chamber, filter, phytoremediation, and solar disinfection chamber. The flowrate was measured based on the difference in water level over time while the influent and effluent quality was evaluated at the inlet of the sedimentation chamber and outlet of the disinfection chamber. The results showed the organic efficiency removal was up to 92% while the solids content was found to be high at 49% and the system was able to effectively remove the ammonia at 57% and reduce the pathogenic bacteria by 88%. Moreover, the treated water quality known as the effluent met all the requirements of the Provincial Regulation of Central Java No. 5 of 2012 and Class 3 standard (water for cultivation of plants and fisheries) of Indonesian Government Regulation No. 82 of 2001. However, it did not meet the standard for toilet flushing water according to the standard from U.K, U.S.A, and Australia. This means the treatment system was unable to produce an effluent with the ability to replace the water use indoor. Therefore, it is recommended that an advanced treatment system for greywater such as Submerged Membrane Bioreactor be applied to maximize the intake of treated greywater for indoor and outdoor uses.
Wastewater Characterization and pH Neutralizing Effect of Adsorbents: A Case Study of Concrete Wash Wastewater from a Ready-Mix Plant Adhin Harum Wulaningtyas; Ni Nyoman Nepi Marleni
Journal of the Civil Engineering Forum Vol. 9 No. 2 (May 2023)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.6622

Abstract

This study aims to characterize washed concrete wastewater and examine the effectiveness of three different adsorbents in reducing its high alkalinity and metal contents. It is important to note that proper treatment is essential before discharging wastewater into water bodies to prevent any negative impact on the environment. Therefore, in this study, an adsorption scenario was conducted to obtain optimum treatment for washed concrete wastewater. The objectives of this study are as follows (1) to determine the typical characteristics of washed concrete wastewater based on the parameters outlined in the Regulation of the Ministry of Environment of Indonesia No 5 of 2014 and (2) to assess the performance of different adsorbents. Three wastewater samples were obtained from a ready-mix plant and then tested in the laboratory. The initial test was conducted to identify influent characteristics, and from this test, it was found that only the pH level exceeded the specified standard. Following this, the study then assessed the ability of three adsorbents to reduce the pH level in washed concrete wastewater using the batch test in Duplo. The pH level was measured at 0.25, 0.5, 1, 2, 3, 4, 5, 6, 7, 8, and 24 hours. The three adsorbents tested were activated carbon, clay brick, and dried domestic sewage sludge. The result shows that dried domestic sewage sludge was the most effective at reducing alkaline wastewater due to its acidic pH. Therefore, it has the potential to replace other commercial adsorbents and reduce the problem of sludge disposal. Further research on this material is recommended, such as evaluating its performance in a more solid form, such as brick, and assessing its contamination potential.
Co-Authors Adhin Harum Wulaningtyas Bambang Triatmodjo Djoko Legono Ermawati, Ristie Firdaus, Nitis Aruming Gema Sakti Raspati Istiqomah, Nurul Alvia Nurul Alvia Istiqomah Ristie Ermawati Sarno Widodo