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All Journal APLIKA Jurnal Ilmu Pengetahuan dan Teknologi Reaktor Seminar Nasional Teknik Kimia Kejuangan Teknika: Jurnal Sains dan Teknologi Info-Teknik Jukung (Jurnal Teknik Lingkungan) Jurnal Chemurgy Jurnal Teknologi Lingkungan UNMUL
Budi Nining Widarti
Program Studi Teknik Lingkungan, Fakultas Teknik Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Other

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PENGARUH WAKTU KONTAK DAN DOSIS KAPUR TERHADAP PENURUNAN PLUMBUM (PB) DALAM TANAH Widarti, Budi Nining
APLIKA Jurnal Ilmu Pengetahuan dan Teknologi Vol 8, No 1 (2008): Februari 2008
Publisher : APLIKA Jurnal Ilmu Pengetahuan dan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1721.274 KB)

Abstract

Untuk mengetahui pengaruh waktu kontak dan dosis kapur terhadap penurunan Pb dilakukan analisa statistik Anova dengan taraf signifikan 5%. Berdasarkan analisa statistik ternyata waktu kontak 10 hari nilai Fhitung (29.965) lebih besar dari Ftabel (5.12) menunjukkan waktu kontak 1o hari ada beda signifikan, sedang untuk waktu kontak 18 hari nilai Fhitung (2.308) lebih kecil dari Ftabel (5.12) menunjukkan waktu kontak 18 hari tidak ada beda signifikan. Dosis kapur yang digunakan untuk waktu kontak 10 hari nilai Thitung (0,06) lebih kecil dari Ttabel (2,262), dosis kapur yang digunakan untuk waktu kontak 18 hari nilai Thitung (-6,262) lebih kecil dari Ttabel (2,262) dalam hal ini menunjukkan dosis kapur yang digunakan untuk setiap waktu kontak tidak ada beda signifikan. Tetapi secara keseluruhan ada kecenderungan semakin besar dosis kapur semakin besar penurunan Pb dalam tanah dan semakin lama waktu kontak maka semakin besar penurunan Pb dalam tanah, sebabkan difat higrokopis kapur sehingga semakin lama waktu kontak dan semakin besar jumlah kapur (CaCo3) akan semakin banyak Oh- yang akan mengikat Pb menjadi Pb(OH)2 selanjutnya Pb akan terinfiltrasi di bawah lapisan olah. Rata-rata efisiensi penurunan Pb untuk waktu kontak 10 hari dan 18 hari terbesar diperoleh pada penggunaan dosis kapur 1,5 Aldd yaitu untuk waktu kontak 10 hari sebesar 67% dan untuk waktu kontak 18 hari sebesar 74%, sehingga dalam aplikasi lapangan digunakan dosis kapur 1,5 Aldd dengan waktu kontak 10 hari.
Pengaruh pH Terhadap BOD, TSS, Dan VFA Pada Pengolahan LindiDalam Bioreaktor Anaerobik Abdul Kahar; Megahapsari Martaningtyas; Budi nining widiarti; ika Meicahayanti
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Leachate is a liquid waste resulted from physical, biological and chemical decomposition of landfill waste. Leachate contains complex dissolved organic and anorganic substrate which are biodegradable and nonbiodegradable.Anaerobictreatmentprincipallyutilizesanaerobicbacteriainordertodegradethedissolvedorganicsubstance. Anaerobic treatment is very sensitive towards the substrate cocentration and pH. The objective of this research is to decide the pH effect on the BOD, TSS and VFA at leachate treatment in anaerobic bioreactor. This research used anaerobic bioreactor with the volume of 160 L. Anaerobic treatment carried out for 21 days, at pH ambient, 7.2 and 8.0. Microorganisms used comes from cow rumen and leachate with a ratio of 1:3 and filtered to take the extract. Collecting data and BOD, TSS and VFA analysis were done every two days. The results showed that the pH effect to the decrease BOD, TSS, and VFA at leachate treatment in anaerobic bioreactor. Anaerobic bioreactor performance optimum at pH 7.2, with the reduction of BOD and TSS was 80.29% and 74.08% respectively,andthe range of VFA productionwas 91.15-185.25 mg/L.  
KEMAMPUAN KOTORAN SAPI DAN EM4 UNTUK MENDEKOMPOSISI BAHAN ORGANIK DAN NILAI EKONOMIS DALAM PENGOMPOSAN Budi Nining Widarti; Sinta Devia; Muhammad Busyairi
Jurnal Teknika Vol 10, No 1 (2014): Edisi Juni 2014
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v10i1.6636

Abstract

Salah satu usaha yang dapat dilakukannya meminimalkan jumlah sampah non medis yang berupa limbah organic sampah dengan cara pengomposan. Tujuan penelitian ini untuk melakukan pengomposan limbah organic dari instalasi gizi dengan metode takakura dan melakukan perhitungan nilai ekonomi pada kompos yang dihasilkan. Tata cara yang digunakan untuk pengomposan menggunakan komposter A berisi bahan kompos berupa sampah sayur dan kotoran sapi, komposter B berisi bahan kompos berupa sampah sayur, kotoran sapi dan EM4. Setelah 21 hari diperoleh hasil komposter A rasio C/N kompos sebesar 12,17 dan komposter B rasio rasio C/N kompos sebesar 13,61. Suhu ke dua komposter dari awal sampai akhir proses mempunyai nilai sama yaitu dimulai dari suhu 28oC dan berakhir suhu 30oC. Komposter A dengan nilai pH 9,8 dan komposter B pada nilai 8,7, sehingga kompos sudah matang sebelum hari ke 21. Pengomposan dengan menggunakan sampah sebanyak 70 Kg dengan harga Rp 60,000,- BEP-Unit yaitu penjualan 146 kemasan kompos dan BEP-Rupiah senilai Rp. 8,781,395,-.
EFFECT OF VARIATION OF MIXTURE LEACHATE WITH FLUID IN CATTLE RUMEN FORMATION OF BIOGAS Edhi Sarwono; Rika Endata; Budi Nining Widarti
Reaktor Volume 18 No. 3 September 2018
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (735.589 KB) | DOI: 10.14710/reaktor.18.03.171-175

Abstract

Abstract Composting in addition to producing fertilizers also produce leachate containing organic material, the leachate can pollute the environment if not managed properly. This study uses leachate as the main substance of biogas, mixed with cattle rumen fluid as the biostarter. This study aims to determine the optimal composition of biogas and to determine the effect of variations in the raw material mixture to the volume of biogas, volatile solid, temperature, pH, and flame. The study was conducted over 43 days using three types of batch digester with a capacity of 27 L. Comparison of a mixture consisting of leachate composting organic waste with cattle rumen fluid in each digester with variations in material composition of the mixture of 70%: 30%, 50%: 50%, 100%: 0%. During the study was observed it the volume of biogas daily, daily pH, temperature daily, weekly flame test and volatile solid test every 10 days. The volume of biogas using the principle of cylinder volume and volatile solid test using USEPA 1684 method. The results show the variation of 70%:30%, which resulted in a final volume of 2.78 L of gas, as well as a decrease in the volatile solid 23.29%, 12.82% increase in the pH. In a variation of 50%:50% produces a final volume of gas that is 0.537 L, as well as a decrease in volatile solid 42.35%, 12.82% increase in the pH. Variations 100%:0% produces a final volume of gas that is 1,247 L, a decrease in volatile solid 21.83%, 5.19% increase in the pH. All three digesters are at mesophilic temperatures and produce blue flame. Based on the results of this study concluded that the composition of the mixture that are in the most optimal is composition of 70%:30%. Keywords : biogas, rumen fluid beef, lindi organic waste composting
PENGARUH PENGGUNAAN METODE OPEN WINDROW DAN TAKAKURA TERHADAP PENGOMPOSAN DEDAUNAN KERING Budi Nining Widarti
INFO-TEKNIK Vol 19, No 1 (2018): INFOTEKNIK Vol. 19 No. 1 Juli 2018
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v19i1.5146

Abstract

Garbage of yard has the highest composition of dry foliage. Dried foliage has potensial organic content to be composed. Simple composting is by using natural aeration that can be done by open windrow and takakura method. This studi aims to determmine the optimal method to produce compost with hight quality. This researsch was done variation of dry composting method using open windrow and takakura method. The result of this study shows that open windrow and takakura method of composting gave no effect to the ratio of C/N, N, P and K on composting dry foliage, so it can be concluded the use of natural aeration used in these two methods did not give a different effect on the ratio of C/N, N, P and K on the composting of dry foliage.
PENGGUNAAN VARIASI TRAY PADA PENGOLAHAN AIR SUMUR BOR Budi Nining Widarti
INFO-TEKNIK Vol 17, No 1 (2016): INFOTEKNIK Vol. 17 No. 1 2016
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v17i1.1258

Abstract

Drilled water well or groundwater is one of clean water sources which often contains high concentration of iron (Fe) and manganese (Mn) with low concentration of pH. The concentration of Fe, Mn and pH in the water that does not comply with quality standards may adversely affect the health of humans. The purpose of this study was to determine the optimum removal efficiency value for Fe, Mn and optimum value of difference in increasing for pH from the point of multiple tray aerator inlet-sedimentation outlet, overall treatment, and determine the quality of water sample at the end of outlet for each parameter in all variations of tray. On this research the variations were performed on multiple tray aerator was the first, second, third, fourth, fifth tray variation including the number of tray storey at 1, 2, 4, 6 and 8 tray.Based on the research that had been done at the point of multiple tray aerator inlet-sedimentation outlet, the optimum removal efficiency value for Fe occurred at the second tray variation of 61,93 %, Mn at the fourth tray variation of 35,69 %. The optimum value of difference in increasing for pH occurred at the fifth tray variation of 1,6. At the point of overall treatment, the optimum removal efficiency value for Fe occurred at the fourth tray variation of 100,00 %, Mn at the second tray variation of 99,68 %. The optimum value of difference in increasing for pH occurred at the fifth tray variation of 2,6.  
PENGARUH UKURAN BAHAN TERHADAP KOMPOS PADA PEMANFAATAN TANDAN KOSONG KELAPA SAWIT Budi Nining Widarti; Rifky Fitriadi Kasran; Edhi Sarwono
Jukung (Jurnal Teknik Lingkungan) Vol 1, No 1 (2015): September 2015
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jukung.v1i1.1034

Abstract

Tandan kosong kelapa sawit merupakan hasil sampingan dari pengolahan minyak  kelapa sawit. Sekam padi hasil samping dari  proses penggilingan beras yang akan menjadi limbah penggilingan. Tandan kosong kelapa sawit dan sekam padi merupakan limbah pemanfaatannya masih belum digunakan secara optimal. Tujuan penelitian ini untuk mengetahui pengaruh variasi ukuran tandan kosong terhadap nilai N, P, K, dan  C/N Rasio  kompos. Pada proses pengomposan ini, panambahan bahan dilakukan dengan variasi ukuran tandan kosong yaitu 5 dan 7,5 cm. Bahan penelitian berupa tandan kosong kelapa sawit, sekam padi dan kotoran sapi. Penelitian dilakukan selama 40 hari. Hasil penelitian menunjukkan bahwa kandungan unsur hara kompos, untuk kadar N sebesar 0,74% pada A1. Kadar P sebesar 0,17% pada B1. Kadar K sebesar 0,18% pada A2. Kadar C/N Rasio sebesar 17-20 pada semua komposter. Variasi ukuran TKKS sebesar 5 dan 7,5 cm pada pengomposan ini tidak berpengaruh terhadap kandungan unsur hara kompos, karena TKKS yang tidak mudah didegradasi oleh mikroorganisme.Kata kunci : Kompos, tandan kosong kelapa sawit, sekam padi.
POTENTIAL FOR BIOGAS DEVELOPMENT FROM SEGIRI MARKET WASTE IN SAMARINDA CITY, EAST KALIMANTAN Edhi Sarwono; Budi Nining Widarti; Aji Ery Burhandenny; Didit Suprihanto; Hairul Huda; Dhea Yolanda
Jurnal Chemurgy Vol 6, No 1 (2022): Jurnal Chemurgy-Juni 2022
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v6i1.7802

Abstract

The Segiri Market waste has the potential to cause sources of disease, unpleasant odors, and interfere with aesthetics.  This study objectives are to estimate waste generation, potential volume and quality of biogas, as well as the potential for energy produced. The implementation of the procedure for sampling waste generation and composition in accordance with SNI 19-3964-1994 for 8 consecutive days.  The projected waste generation is based on the number of active traders and market capacity for five years. This study implements experimental method using 120 L volume using a ratio of 1:1 for chopped market garbage and cow rumen fluid.  The parameters are temperature, pH, biogas volume, and volatile solid values. The average volume and weight of waste generation in 2021 is 55.69 m3/day or 19,906.60 kg/day. The estimated biogas material harvested from the waste is 50.57 m3/day. This number is comprised of organic waste and inorganic waste with a total of 97.67% and 2.33% consecutively. The volume of biogas produced for 35 days is 156.45 mL, which equivalent to 1.05 kWh/day of electrical energy. The pH is in the range of 4.79 - 6.3, and the temperature is within 29.4oC - 31.9oC. Biogas can burn in the third to fifth weeks with a blue flame color. The estimated waste generation until 2025 reaches 61.31 m³/day which equivalent to 1.16 kWh /day of electrical energy. Keywords: Biogas, Market Waste, Tradisional Market, Waste Generation, Renewable Energy
PENGEMBANGAN BIOGAS SAMPAH PASAR Budi Nining Widarti; Gadis Dilasari; Edhi Sarwono
INFO-TEKNIK Vol 23, No 1 (2022): INFOTEKNIK VOL. 23 NO. 1 JULI 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v23i1.14136

Abstract

The traditional market has degradable waste, especially from the types of vegetables and left over food, the waste is not managed properly will potentially cause disease and poor aesthetics. There are various kinds of recycling and waste utilization efforts to reduce the potential negative impacts and produce a product that is more economically valuable so that the volume of waste does not continue to increase. Based on this consideration, it is necessary to study the generation and composition of waste as well as the potential for biogas from waste in Pasar Pagi Samarinda. The organic material of Pasar Pagi waste which is used as energy through the anaerobic digestion process can be considered from the quality of the biogas and the volume of biogas produced. The determination of waste generation and volume of waste is calculated based on the number of traders in the Pasar Pagi. The biogas production in the digester uses organic waste raw materials from Pasar Pagi and rumen liquid in a ratio of 1:1. The Calculation of gas formed was carried out using a U manometer, temperature measurements using a thermometer, pH measurements using a pH meter were carried out every day and VS measurements were carried out every seven days. The mass of Pasar Pagi waste was 1.81 kg/trader/day and for the volume unit is 4.90 L/trader/day. The total composition of organic waste for vegetables, fruit, and food waste was 85.5%, organic waste in the form of cardboard or paper waste was 2.9%, the composition of plastic waste was 10.7% and metal was 0.9%. The pH of the digester during the formation of biogas shows an acidic condition, and the increase in pH that occurs is only able to reach pH 6 or close to neutral. The temperature in the digester at the beginning of the process tends to increase, then decreases and increases again at the end of the process, but does not affect the biogas production that is still ongoing. The addition of cow rumen contents was able to increase the volume of biogas formed in organic matter and the VS value decreased every week accompanied by the increase in biogas production. This shows that the organic waste in Pasar Pagi has the potential for biogas production.
VARIASI OPTIMUM BIOGAS DARI LIMBAH CAIR KELAPA SAWIT Budi Nining Widarti; Ditha Dwijayanti; Edhi Sarwono
INFO-TEKNIK Vol 24, No 1 (2023): INFOTEKNIK VOL. 24 NO. 1 JULI 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v24i1.14960

Abstract

Biogas is one of the renewable energy sources produced from the process of methanogenesis. This research was conducted to determine the optimal composition of palm oil liquid waste (POME) and cow rumen fluid to produce biogas and to determine the effect of the composition of the mixture on the volatile solid value, pH, temperature, biogas production, and flame testing. This study used 3 trial batch type digesters with a capacity of 40 L and the raw material was a mixture of palm oil mill effluent (POME) and cow rumen fluid with a composition of 3 : 1 (R1), 1 : 1 (R2) and 4 : 1 ( R3). During the treatment, pH, temperature, VS and biogas were tested. This research was conducted for 49 days. The research was conducted for 49 days and it was found that the composition of the mixture of palm oil mill effluent (POME) with cow rumen fluid which was optimal for producing biogas was found in R1 with a mixture composition of POME: cow rumen fluid as 3:1. R1 produces a volume of biogas of 1.86 L, from the flame test it can ignite from the third to the seventh week. The composition of the different mixed ingredients for each digester has an influence on the value of VS, pH, temperature, biogas production, and flame tests. The effect was on the difference in VS values, pH, biogas production, and flame test results for each digester, but for the temperature parameter the effect was not too visible because the temperature ranges for the three digesters were both in the mesophilic temperature range, ranging from 27°C - 32°C.
Co-Authors Abdul Kahar Aji Ery Burhandenny Azis, Wahyu Arindra Dhea Yolanda Didit Suprihanto, Didit Ditha Dwijayanti Dwi Ermawati Rahayu Dyah Wahyu Wijayanti Edhi Sarwono Edhi Sarwono Fitriadi Fitriadi Gadis Dilasari Hairul Huda Megahapsari Martaningtyas Meicahayanti, Ika Muhammad Busyairi, Muhammad negara, muzalia augustina Rika Endata Sinta Devia Zain, Iqbal Fathur