Article Per Year (5 Year)
p-Index From 2021 - 2026
1.452
P-Index
This Author published in this journals
All Journal Journal of Engineering and Technological Sciences UNEJ e-Proceeding Journal of Community Based Environmental Engineering and Management INFOMATEK: Jurnal Informatika, Manajemen dan Teknologi
Lili Mulyatna
Universitas Pasundan
Computer Science & IT Education Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Public Health Other

Published : 20 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 20 Documents
Search

 1   2 
Rainwater Treatment Using Treated Natural Zeolite and Activated Carbon Filter Lili Mulyatna; Yonik M. Yustiani; Astri Hasbiah; Widya Yopita
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Rainwater is an alternative sources of drinking water. The rainwater treatment process should be conducted before the rainwater can be consumed. One of the water treatment process is filtration. Zeolites and activated carbon are often used as filtration media due to its high availability and water pollutants removal efficiency. This research aims to measure filtration efficiency and the production cost of rainwater filtration treatment  using  modified/treated  natural zeolite  (TNZ) and activated carbon filter. Types of filter media used in this research are TNZ RC.32 (adsorbent for total dissolved solid, total suspended solid, CO2  and alkalinity), TNZ RC.42 (cation exchanger for Fe, Mn, color, and organic matter) and activated carbon filter. The research is conducted using four variations of filters configuration and  two  variations of reactor volume. The parameters tested are turbidity, total dissolved solid, pH, organic matter, and coliform. Reactor debit used is 0.01 l/sec. Filter configuration of TNZ RC.32 and activated carbon filter with 1.5 liter reactor volume has the highest organic substances removal efficiency by 58.85% and the lowest reactor production cost of Rp. 560,600. The results of rainwater treatment meets Indonesian drinking water regulation quality standards.
UJI EFEKTIVITAS IONIZER BBM TERHADAP PENURUNAN EMISI GAS KARBON MONOKSIDA DAN HIDROKARBON PADA MOBIL DENGAN SISTEM KARBURATOR Lili Mulyatna; Yonik Meilawati Yustiani; Ahmad Sidik
INFOMATEK Vol 21 No 1 (2019): Volume 21 No. 1 Juni 2019
Publisher : Fakultas Teknik, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.999 KB) | DOI: 10.23969/infomatek.v21i1.1614

Abstract

Salah satu sumber pencemaran udara di kota besar adalah emisi gas buang yang berasal dari kendaraan. Untuk mengurangi emisi gas buang tersebut, alternatif yang sering digunakan adalah ionizer bahan bakar minyak (BBM) yang pada prinsipnya dapat meningkatkan pembakaran. Penelitian ini bertujuan untuk mengetahui tingkat efektifitas penggunaan ionizer BBM tersebut untuk mengurangi emisi gas karbon monoksida (CO) dan hidrokarbon (HC) dari proses pembakaran BBM jenis Premium, Pertalite dan Pertamax. Alat yang digunakan untuk mengukur emisi gas buang adalah exhaust gas analyzer, sedangkan kendaraan bermotor yang digunakan adalah mobil dengan sistem karburator. Hasil pengukuran emisi CO dan HC tersebut kemudian diolah untuk mengetahui tingkat efektivitas ionizer BBM. Hasil pengolahan data memperlihatkan bahwa ionizer BBM memiliki efisiensi penurunan emisi yang berbeda-beda untuk tiap jenis bahan bakar. Penurunan emisi gas CO paling tinggi terjadi pada bahan bakar pertamax sebesar 0,31%, sedangkan penurunan emisi gas HC mencapai sebesar 347,66 ppm. Hasil tersebut memperlihatkan bahwa efektifitas ionizer BBM dalam mengurangi emisi CO dan HC relatif rendah.
PEMETAAN KEBISINGAN DI RUANG DEPARTEMEN SPARE PART DAN DEPARTEMEN LAS MENGGUNAKAN APLIKASI SURFER Lili Mulyatna; Yonik Meilawati Yustiani; Ari Rizky Darmawan
INFOMATEK Vol 21 No 2 (2019): Volume 21 No. 2 Desember 2019
Publisher : Fakultas Teknik, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (788.992 KB) | DOI: 10.23969/infomatek.v21i2.1983

Abstract

PT. SA adalah industri penyedia suku cadang (spare part) dan rekayasa mesin produksi. Proses produksi pabrik ini berpotensi menimbulkan kebisingan yang dapat menurunkan tingkat kenyamanan bahkan kesehatan responden yang berada di sekitarnya. Penelitian ini bertujuan untuk mengukur tingkat kebisinganyang terjadi di ruang Departemen Spare Part dan Departemen Las industri tersebut. Pemetaan dilakukan dari hasil pengukuran ini. Dengan pemetaan yang diperoleh, maka penanggulangan dapat dilakukan sesuai dengan lokasi yang telah terpetakan memiliki kebisingan melewati baku mutu. Pengukuran tingkat kebisingan dilakukan dengan menggunakan alat Sound Level Meter. Pengukuran dilakukan berdasarkan SNI 7231:2009, yaitu selama 10 menit pada setiap titik dan data yang diperoleh adalah data tingkat kebisingan. Pembuatan peta kebisingan dalam ruang Spare Part dan Las tersebut dilakukan aplikasi Surfer versi 11. Pengukuran menunjukkan bahwa tingkat kebisingan yang tertinggi terjadi pada unit Departemen Spare Part. Nilai kebisingan yang terjadi yaitu 95,4 dB. Sedangkan pada Departemen Las mempunyai tingkat kebisingan terendah sebesar 90,9 dB. Beberapa faktor lain di luar suara mesin juga mempengaruhi kebisingan, baik berasal dari alat transportasi, suara manusia dan aktivitas penyelesaian barang menggunakan alat pemukul.
PENYISIHAN TOTAL COLIFORM DALAM AIR HUJAN MENGGUNAKAN MEDIA FILTER ZEOLITE TERMODIFIKASI, KARBON AKTIF, DAN MELT BLOWN FILTER CARTRIDGE Astri Widiyastuti Hasbiah; Lili Mulyatna; Widia Rahmawati Pahilda
INFOMATEK Vol 21 No 1 (2019): Volume 21 No. 1 Juni 2019
Publisher : Fakultas Teknik, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.526 KB) | DOI: 10.23969/infomatek.v21i1.1610

Abstract

Indonesia dengan curah hujan sebesar 2.000-3.000 mm per tahun dapat memanfaatkan air hujan sebagai salah satu sumber air minum. Akan tetapi, sebelumdapat dimanfaatkan air hujan harus diolah terlebih dahulu karena air hujan yang di panen dari atap rumah biasanya terkontaminasi pencemar mikrobiologi. Organisme yang merupakan indikator pencemar mikrobiologi adalah coliform. Penelitian ini bertujuan untuk menyisihkan total coliform yang terdapat dalam air hujan.Penelitian dilakukan dengan menggunakan filtrasi media berbutir. Media filter yang digunakan yaitu Zeolite termodifikasi (TNZ) tipe RC.32 dan RC.42, karbon aktif, dan melt blown filter cartridge dengan ukuran 3 dan 1 mikrometer. Filtrasi dilakukan dengan menggunakan dua buah reaktor berukuran 10 dan 20 inch.Penelitian dilakukan dengan tiga variasi susunan media filter untuk mendapat susunan media filter yang paling optimal dalam menyisihkan total coliform. Filtrasi menggunakan susunan media TNZ RC.32-Cartridge granural karbon aktif-Melt blown flter cartridge 3 mikron dengan ukuran reaktor 20 inch merupakan susunan variasi media filter terbaik karena dapat menyisihkan 100% total coliform dari air hujan.
STUDI IDENTIFIKASI KUALITAS AIR DAN KAPASITAS BIODEGRADASI SUNGAI CIBALIGO Yonik Meilawati Yustiani; Lili Mulyatna; Ali Anggadinata
INFOMATEK Vol 22 No 1 (2020): Volume 22 No. 1 Juni 2020
Publisher : Fakultas Teknik, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/infomatek.v22i1.2860

Abstract

Sungai Cibaligo merupakan salah satu sungai yang dimanfaatkan sebagai tempat pembuangan limbah cair baik itu domestik maupun non domestik dari berbagai aktivitas manusia seperti pemukiman, pertanian, industri dll, yang mengakibatkan terjadinya pencemaran dan penurunan kualitas perairan. Tujuan penelitian ini adalah untuk mengidentifikasi data kualitas air dari Tahun 2012 hingga tahun 2016 dengan parameter-pencemaran air yang meliputi (pH, BOD, COD, Krom Heksavalen (Cr+6), Nitrit, Minyak dan Lemak dan MBAS) yang dibandingkan dengan baku mutu air kelas 2 PP No. 82/2001 tentang Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air. Selanjutnya dilakukan penentuan status mutu air dengan menggunakan metode Storet sesuai Keputusan Menteri Negara Lingkungan Hidup Nomor 115 Tahun 2003 tentang Pedoman Penentuan Status Mutu Air. Hasil penelitian menunjukan bahwa hampir semua parameter yang diperiksa melebihi baku mutu, sedangkan status mutu air didapatkan hasil bahwa Sungai Cibaligo dari hulu hingga hilir masuk ke dalam kelas D yang artinya sudah mengalami pencemaran berat. skor tertinggi yaitu pada segmen tengah dengan skor -60 dan yang terendah yaitu pada segmen hulu dengan skor -48, sementara segmen hilir skor yang didapat yaitu sebesar -56. Untuk perhitungan rasio BOD/COD sebagai parameter kapasitas biodegradasi menunjukkan bahwa selama periode 2012-2016 rasio berkisar antara 0,1 - 0,5. Kondisi toksik terjadi pada tahun 2016 di segmen tengah dan hilir.
Relationship between Pollutant Sources and Water Quality of Dug Well Based on Biological Parameters of E. Coli Deni Rusmaya; Lili Mulyatna; Putri Ayu Lestari
Journal of Community Based Environmental Engineering and Management Vol. 6 No. 2 (2022): Vol. 6 No.2, September 2022
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (545.314 KB) | DOI: 10.23969/jcbeem.v6i2.6087

Abstract

Water from dug wells is one of the sources of clean water used by the community both in villages and cities. Groundwater consumed by the community must have quality in accordance with the specified requirements. One of the important parameters is the presence of Escherichia coli bacteria (E.coli). The aims of this study is to identify the presence of Escherichia coli bacteria in dug well. In addition, to determine the correlation between the distance of the pollutant source (cowshed and septic tank) and the well. The analytical method used is univariate descriptive method and quantitative analysis. The results showed from 7 wells that were used as research objects, there were 4 wells positive for E. Coli bacteria and 3 wells were negative for E. Coli bacteria. The correlation value test showed that the pollutant source from cowshed had a coefficient of determination of R 2 = 0.911 or 91.1% which means that there is a strong relationship between the presence of E.Coli bacteria in the well and cow dung. As for the pollutant source from the septic tank, the results of the correlation test show the value of R 2 = 0.201 or 20.1% which means that the relationship between the presence of E. Coli bacteria and the septic tank is not strong. Septic tanks construction that conform to standards are one of the factors that cause dug well water quality to remain protected from pollutants.
Effect of Variations in the Pretreatment of Organic Waste on The Growth of Black Soldier Flies (BSF) Larval Lili Mulyatna; Anni Rochaeni; Riana Saputra; Bryan Yogi; Ihsanul Fiqri
Journal of Community Based Environmental Engineering and Management Vol. 6 No. 2 (2022): Vol. 6 No.2, September 2022
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (509.926 KB) | DOI: 10.23969/jcbeem.v6i2.6161

Abstract

This study was conducted to see the effect of size and freshness variations of organic waste on BSF growth. The research was conducted on laboratory-scale research at campus of Pasundan University and field-scale research on Pojok Kang Pisman at Bandung City-hall. In laboratory-scale research, the organic waste used is artificial organic waste whose composition is close to organic waste from market. Meanwhile in field-scale research, the organic waste used is from market organic waste. Variations in pretreatment were carried out by varying the organic waste size and freshness in laboratory-scale research and comparison in order of chopping and fermentation of organic waste in various cocopeat thickness in field-scale research. Maggot/BSF growth analysis was carried out by calculating the waste reduction index, Efficiency of Conversion Digested Feed, survival rate, and maggot protein tests. The results of the laboratory study showed that the smaller the size of the waste influenced increasing the WRI, SR and ECD values but had little effect on the protein content of the larvae. The protein content of larvae is suitable for chicken feed (19-21%). However, when the waste was fermented, there was a significant increase in WRI and SR, and the protein content of the larvae increased (32-34%), suitable for tilapia and catfish feed. Field research results with higher larval density in fermented waste resulted in higher WRI and ECD values compared to laboratory results with lower larval density. In addition, the treatment of chop-fermentation and fermentation-chopped sequences gave different water content values ​​which affected the WRI and ECD values. The higher the water content, the lower the WRI and ECD values. The protein content of larvae in the field study was almost the same as in the laboratory study, ranging from (31-34%).
Mapping Water and Sanitation Condition to Improve Universal Access in Bandung City Astri Widiastuti Hasbiah; Lili Mulyatna; Hary Pradiko; Hidayat Hidayat; Evi Afiatun; Hermin Aulia Racmie; Nine Triani
Journal of Community Based Environmental Engineering and Management Vol. 7 No. 2 (2023): Vol. 7 No.2, September 2023
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v7i2.10260

Abstract

Many developing countries lack the necessary infrastructure for clean water supply and sanitation facilities, especially in urban areas. Cities in Indonesia are also facing this problem. The rapid growth of urban areas puts a strain on existing water and sanitation infrastructure, making it difficult to meet the increasing demand for services. This can lead to inadequate mapping and planning for future needs. Water and sanitation mapping is an important tool for monitoring access to clean water and sanitation facilities to gather accurate data and improving access to clean water and sanitation. The purpose of this study is mapping water and sanitation condition and calculate the sanitation index. The mapping carried out includes source of drinking water, wastewater, drainage system, and solid waste disposal. The study was conducted in RW 06 Pasirluyu, a community neighbourhood in Bandung City. The methods used are questionnaire interviews and direct observation. The total respondents of study locations were 225 houses, but only 101 houses were willing to participate in the study. The study results show that 89% of respondents clean water source comes from deepwell groundwater for cooking and washing, wheran openmain source for drinking water is from bottled water, 89% of respondents use septic tank for their wastewater, 11% of respondents dispose their wastewater into open channels or conduct open defecation, 89% of the draineage is open drainage system, and 61% of the respondents conducted solid waste separation. Sanitation index assessment in RW 06 Pasirluyu calculated scored 1.25 for drinking water aspect, 1.23 domestic wastewater aspect. 1.21 drainage aspect, 1.02 domestic waste aspect. Overall, based on the sanitation index assessment results, the RW 06 Pasirluyu is classified as good.
Changes in Waste Management Behavior in Supporting the Implementation of Green Economy in MSMEs Rusliati, Ellen; Lisda, Ruslina; Mulyatna, Lili; Ratiningsih, Saniyyah; Nurpauziah, Puspa
Journal of Community Based Environmental Engineering and Management Vol. 9 No. 2 (2025): September 2025
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v9i2.29436

Abstract

The green economy is an economic concept that aims to improve welfare and social justice and reduce environmental risks. The purpose of this program is to measure the implementation of the green economy in Cimincrang Village, to control waste at the source, and the application of green technology, with local government partners and PKK (Pemberdayaan Kesejahteraan Keluarga/Family Welfare Empowerment) cadres, and the subjects are MSMEs (Micro and Small, and Medium Enterprises). The method used was environmental reevaluation, data obtained through observation, interviews, questionnaire distribution, and secondary data support. Programs carried out include: (1) education and communication, (2) community involvement, (3) incentive programs, and (4) policies and regulations. The results show that the understanding of PKK cadres as guardians of the commitment to behavior change was better than MSMEs. Initial conditions show that MSMEs' understanding of waste management and the green economy is in good condition, and has increased to very good. Indicators that are still needed to be improved include: (1) sorting waste is an easy job, (2) owning loseda, (3) bringing bags/tumblers/food boxes when shopping, (4) reminding others to sort waste, (5) green economy can improve the quality of life, (6) reducing single-use plastic packaging, (7) awareness that we borrow the environment from the next generation, (8) community awareness to protect the environment. Changes in the behavior of maggot house managers are supported through facilitation of the oven provision, training implementation, and motivational encouragement, in the form of sustainability measures, so that maggot houses obtain funds for development and improvement.
The Effect of Air Flow and Stirring Frequency in Continuous Thermophilic Composting Rochaeni, Anni; Ariantara, Bambang; Mulyatna, Lili; Nugraha, Arief; Apriansyah, Riza
Journal of Community Based Environmental Engineering and Management Vol. 8 No. 1 (2024): March 2024
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v8i1.12958

Abstract

Continuous Thermophilic Composting (CTC) was developed as a modification of continuous composting carried out in the thermophilic phase, where the organic waste degradation process runs quickly. Previous CTC research used lamps as a heat source, which was then changed to use a heater. Several important factors in composting are stirring and air circulation to increase oxygen levels so that the aerobic composting process occurs. The machine has been modified by making air holes and setting automatic stirring. This research aims to determine the air hole openings and stirring frequency that provide the best results. The research was carried out in 2 stages. The first stage is to look for air hole openings with 3 variations: closed, half open, and fully open. Continue by finding the best stirring frequency with 3 variations: once a day, 2 times a day, and 6 times a day. The parameters measured include temperature measured humidity and pH during the composting process, and chemical analysis of fresh waste, compost starter, and mature compost resulting from the process. The research was carried out for 8 days with the addition of 1 kg of artificial waste per day. The results showed that half-open air holes produced better compost quality and temperature consistency in the thermophilic phase. And the stirring frequency of 2 times a day produces consistent temperature results in the thermophilic phase and compost quality that meets SNI 19-7030-2004 of Compost Specifications from Domestic Organic Waste.
Co-Authors Ahmad Sidik Ali Anggadinata Anggi Doli Wiranata Situmeang Anggi Doli Wiranata Situmeang Anni Rochaeni Apriansyah, Riza Ari Rizky Darmawan Ariantara, Bambang Bryan Yogi Deri Baehakhi Diki Abdurahman Diny Hidayanti Eldiansyah Thariq Ellen Rusliati Evi Afiatun Fadjari Lucia Nugroho Happy Dhamayantris Hasbiah, Astri Hermin Aulia Racmie Hidayat Hidayat Ihsanul Fiqri Linda Qomariyah Lisda, Ruslina Nine Triani Nugraha, Arief Nurpauziah, Puspa Pebby Febrianto Pradiko, Hary Putri Ayu Lestari Raja Faisal Ramadhan Ratiningsih, Saniyyah Reyhan Reiyana Andisa Riana Saputra Rusmaya, Deni Sri Wahyuni Suwirkas Suwirkas Widia Rahmawati Pahilda Widya Yopita Yustiani, Yonik Meilawati