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LABORATORY STUDY ON THE OPTIMIZATION OF IPLT SUMUR BATU DEWATERING UNIT USING DIFFERENT COAGULANTS Sandra Madonna; Sirin Fairus; Nadya Nurul Amelinda
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 2, April 2019
Publisher : Universitas Trisakti

Aim: The aim of this study is to determine the most effective type and concentration of coagulant to reduce TDS, TSS, BOD and COD Sumur Batu Fecal Treatment Plant or Instalasi Pengolahan Lumpur Tinja (IPLT) Sumur Batu. Methodology and Results: Using the jar test method at a laboratory scale, the types of coagulants of PAC, Alum and FeSO4 with varied concentration of 70 mg/L, 137.5 mg/L and 200 mg/L were used. Additionally, Polyacrylamide was also used in the study with concentration varied between 0.1 mg/L, 0.6 mg/L, and 1.1 mg/L adjusted to the concentration in the field. Conclusion, significance and impact study: Results showed that Alum with a concentration of 200 mg/L was the most effective coagulant, with removal efficiency for each parameter is as follows TDS = 82.17%, TSS = 67.69%, BOD = 60.16%, and COD = 59.76%.

TINJAUAN SINGKAT BIO-ELEKTROKINETIK REMEDIASI PADA TANAH TERCEMAR HIDROKARBON MINYAK BUMI Sandra Madonna
Jurnal Reka Lingkungan Vol 10, No 3 (2022)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekalingkungan.v10i3.175-187

Bioremediasi telah banyak diaplikasikan untuk pemulihan tanah yang tercemar hidrokarbon minyak bumi, namun dalam aplikasinya yang luas masih dibatasi oleh karakterisik polutan, karakteristik tanah dan karakteristik mikroba pendegradasi dalam beradaptasi pada lingkungan yang berbeda. Tantangan dalam bioremediasi tanah tercemar hidrokarbon minyak bumi selain kompleksitas senyawa polutan dan juga bersifat rekalsitran, sertatoksik sehingga polutan sulit terbiodegradasi dan menyebabkan laju degradasinya berjalan lambat. Lambatnya laju degradasi limbah organik dipengaruhi oleh enzim-enzim degradatif mikroba yang sulit mengkatalis reaksi degradasi limbah dari senyawa xenobiotik atau yang senyawa yang tidak alami, karakteristik senyawa pencemar yang sukar larut dalam air, dan mengandung senyawa toksik bagi mikroorganisma pendegradasi. Bioremediasi tanah tercemar hidrokarbon minyak bumi umumnya akan berlangsung dalam hitungan bulan, waktu degradasi tersebut dapat dipercepat dengan menggabungkannya dengan teknik elektrokinetikremediasi dan meningkatkan bioavailibiltas denganmelakukan biostimulasi pada tanah tercemar tersebut, sehingga remediasi dapat berlangsung dalam hitungan hari bahkan hitungan jam. Makalah ini memberikan ulasan tentang pegabungan teknologi remediasi untuk tanah yang terkontaminasi minyak bumi. Metode yang dibahas meliputi Bioremediasi dan Elektrokinetik remediasi yang dikaitkan denganefektifitas degradasi, waktu degradasi,kelebihan, kekurangan, dan prospek pengembangannya di masa depan. Penekanan pada makalah ini adalah tidak ada teknologi remediasi tunggal yang dianggap sebagai solusi terbaik untuk remediasi tanah yang terkontaminasi minyak bumi yang bersifat komplek

THE EFFECT OF NOISE ON WORK FATIGUE IN AN OIL AND GAS INDUSTRY Okto Hebrani; Sandra Madonna; Prismita Nursetyowati
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 1, Number 2, April 2018
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v1i2.2426

Aim: The purpose of this study is to determine the effect of noise on work fatigue at Central Processing Plant (CPP) Gundih Completed. Noise is one of the causes of fatigue in the oil and gas industry. Methodology and Result: Noise is measured using a Sound Level Meter at 45 sampling points spread across two gas processing zones at CCP Gundih in Cepu is Utility zone and Main Process zone. The noise distribution pattern based on noise level in gas processing field of CPP Gundih made using Surfer 11 software. Measurement of fatigue using the Fatigue Measure Measurement Questionnaire and Subjective Self Rating Test questionnaire from Industrial Fatigue Research Comitte Japan. The results of this study prove that the Utility Zone at the sampling point 35 to 45 has a noise level of 74,229 dBa - 106,285 dBa, point 45 has passed the Noise Decree of Kepmenaker No. 51 of 1999, but overall the sampling point in the Utility zone has passed through Kepmenlh no. 48 in 1996. In the Main Process zone at sampling points 6 to 17 and 30 have passed the standard noise level Kepmenaker no. 51 of 1999 with a noise level of 85.967 dBa to 87.155 dBa and 85.146 dBa. Overall there are 4 sampling points that do not pass the standard noise level of Kepmenlh no. 48 of 1996 and Kepmenaker no. 51,1999 points 25, 26,31 and 33. Conclusion, significance and impact study: Noise affects fatigue based on several factors, including noise factor 39%, 32.1% weakening activity factor and physical fatigue factor 28.2%.

STUDY ON EFFECTIVE NOISE BARRIER AT SENIOR HIGH SCHOOL (SMAN 02) CIBINONG Aulia Ramandha; Wisnu Eka Yulyanto; Sandra Madonna
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 2, April 2019
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v2i2.4360

Aim: The aim of this study is to design noise barrier shapes and to investigate its effectiveness in reducing traffic noise at one public school in Indonesia. Methodology and Results: Two types of barriers were designed on a laboratory scale using plywood materials and the noise level was measured using Noise Analyzer Briiel and Kjaer Type 2250. Noise reduction was analyzed by using the Insertion Loss method based on the difference of the noise level before and after implementing the barrier. The results show that the barrier Type II with a length of 200 cm, a receiver height of 30 cm, and a curved shape of 45° angle (Type L) is more effective in reducing the noise than the other variation of barrier shape and length. Barrier Type L (Type II) can reduce the noise at high frequency between 1–8 kHz with an Insertion Loss value of 6.9–27.9 dB. Conclusion, significance and impact study: The noise barrier Type II, with specifications of 20 m length, 3 m height, and barrier material of reinforced concrete, is recommended to be used at the high school to reduce the road traffic noise.

LABORATORY STUDY ON THE OPTIMIZATION OF IPLT SUMUR BATU DEWATERING UNIT USING DIFFERENT COAGULANTS Sandra Madonna; Sirin Fairus; Nadya Nurul Amelinda
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 2, April 2019
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v2i2.4363

Aim: The aim of this study is to determine the most effective type and concentration of coagulant to reduce TDS, TSS, BOD and COD Sumur Batu Fecal Treatment Plant or Instalasi Pengolahan Lumpur Tinja (IPLT) Sumur Batu. Methodology and Results: Using the jar test method at a laboratory scale, the types of coagulants of PAC, Alum and FeSO4 with varied concentration of 70 mg/L, 137.5 mg/L and 200 mg/L were used. Additionally, Polyacrylamide was also used in the study with concentration varied between 0.1 mg/L, 0.6 mg/L, and 1.1 mg/L adjusted to the concentration in the field. Conclusion, significance and impact study: Results showed that Alum with a concentration of 200 mg/L was the most effective coagulant, with removal efficiency for each parameter is as follows TDS = 82.17%, TSS = 67.69%, BOD = 60.16%, and COD = 59.76%.

Edukasi Pengelolaan Sampah Domestik dalam Mewujudkan Kampung Hijau Mandiri di RT 01 RW 06 Kelurahan Kreo Tangerang Madonna, Sandra; Nursetyowati, Prismita; Dewi Meilasari Sugiana, Astrid; Djuitaningsih, Tita
Indonesian Journal for Social Responsibility Vol. 2 No. 02 (2020): December 2020
Publisher : LPkM Universitas Bakrie

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/ijsr.v2i2.36

Kampung Hijau Mandiri is one of Tangerang Government’s Programs to increase public awareness for a clean, green, and beautiful surrounding. Ninety-eight of Kampung Hijau Mandiri were formed throughout Tangerang’s Sub-Districts, one of which is in RT 01 RW 06, Kreo Sub-District. Criteria for Kampung Hijau Mandiri include a lively, comfortable and clean village with waste sorting initiatives. Kreo, one of the densely populated villages in Tangerang, has 22,837 inhabitants. Waste generated in RT 01 RW 06, Kreo, Tangerang is around 2,040 liters/day, quite large and can be reduced. Presently, household wastes in RT 01 RW 06 are still managed conventionally using the collection and disposal system. The economic potential of household organic and inorganic waste has not been optimally utilized. Organic waste management through composting (Takakura baskets) and non-organic waste management through waste banks are considered appropriate for processing household wastes. Hence, the community develops a new habit of sorting and processing waste into productive means, reducing waste generation transported to landfills. The waste management educational mentoring program was attended by 14 people, especially housewives and Posyandu cadres, through presentations and question and answer. This activity has great potential to endure as housewives and Posyandu cadres in RT 01 RW 06 Kreo Sub-District are influential household stakeholders in their environment. Residents of RT 01 RW 06 Kreo Sub-District agreed to initiate waste bank establishments. This program is expected to increase citizen’s involvement in waste management. RT 01 RW 06 Kreo is an exemplary Kampung Hijau Mandiri.

Edukasi Pelestarian Lingkungan Hidup dan Penghematan Air Madonna, Sandra; Hermiyetti, Hermiyetti; Dewi Meilasari Sugiana, Astrid; Made Indradjaja Brunner, I
Indonesian Journal for Social Responsibility Vol. 6 No. 02 (2024): December 2024
Publisher : LPkM Universitas Bakrie

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/ijsr.v6i02.280

Wasting clean water in society worsens the shortage of water and makes it harder to access. To address this, it’s important to promote water-saving habits and boost community involvement in protecting the environment. The clean water crisis has also been felt by the community of the Majelis Taklim Nurul Qolbi. The Majelis Taklim Nurul Qolbi, an association of blind people in Tangerang City, has also faced water shortages, especially during dry seasons and large gatherings. Community Service Activities have been carried out to overcome this problem by using technological and social approaches. The technological approach is to install 4 ablution water flow limiters at the Nurul Qolbi Musala. The social approach is to provide socialization to the community, especially the congregation at the Majelis Taklim Nurul Qolbi to save water, especially for ablution. The result of this community service activity is the application of appropriate technology from water flow limiters resulting from research innovations and social activities that have been carried out previously. This activity has succeeded in saving ablution water by reducing the water flow rate by 74.6%. The water discharge before the installation of the device was around 5 L/minute and after the installation of the device the water flow decreased to 1.27 L/minute. The results of this community service activity have given the congregation awareness to preserve the environment by carrying out energy efficiency and water conservation, and spreading the culture of saving water in the surrounding environment.

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