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All Journal Journal of Engineering and Technological Sciences Jurnal Dampak Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Serambi Engineering Journal of Community Based Environmental Engineering and Management INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Hafizhul Khair
Teknik Lingkungan, Fakultas Teknik, Univesitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Other

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Development of Green Pavement for Reducing Oxides of Nitrogen (NOx) in the Ambient Air Dewi, Kania; Khair, Hafizhul; Irsyad, Moh.
Journal of Engineering and Technological Sciences Vol 48, No 2 (2016)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (464.871 KB) | DOI: 10.5614/j.eng.technol.sci.2016.48.2.3

Abstract

The transportation sector is the biggest contributor to air pollution in Indonesia, especially in metropolitan cities. Gases such as oxides of nitrogen (NOx) are produced during the combustion of fossil fuels in the internal combustion of vehicle engines. Oxides of nitrogen such as nitric oxide (NO) and nitrogen dioxide (NO2) are important air pollutants, because they cause significant harm to human health and play an important role in being precursors of other dangerous pollutants such as photochemical smog. One of the simple ways to reduce NOx concentrations is utilizing a catalytic process involving UV light and semiconductor particles such as TiO2. Illuminated TiO2 UV light is capable of producing an electron (e-) and hole (h-) pair, which initiates a chemical reaction that alters the NOx to become NO3- or NO2-. A field scale paving block reactor coated with TiO2 placed by the roadside was exposed to UV light using various exposure times. The results showed that the sample with a composition of 200 g/m2 TiO2 was capable of adsorbing NOx gas at an average rate of 0.0046 mg/m2/minute. Additional costs due to TiO2 coating for every square meter of paving are IDR 13,180.
PERANCANGAN SISTEM SANITASI LINGKUNGAN DI POSKO BENCANA SINABUNG KONCO KECAMATAN TIGAN DERKET Arif I’tisham; Ahmad Perwira Mulia; Hafizhul Khair
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 2 No. 1 (2017): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (744.122 KB) | DOI: 10.32734/abdimastalenta.v2i1.2187

Abstract

Bencana adalah peristiwa atau rangkaian peristiwa yang mengancam dan mengganggu kehidupan dan penghidupan masyarakat. Jika terjadi bencana, maka akan memunculkan permasalahan yang dapat dikategorikan menjadi 2 (dua), yakni (1) di saat bencana biasanya timbul korban dalam keadaan meninggal atau cedera yang membutuhkan pertolongan medis darurat dan (2) terjadi pengungsian yang memunculkan masalah kesehatan masyarakat pengungsi. Bencana erupsi gunung Sinabung yang terjadi di kota Medan Sumatera Utara merupakan bencana yang dapat menimbulkan permasalahan yang dikategorikan seperti di atas. Sanitasi dan penyediaan air bersih merupakan pokok persoalan yang harus cepat tanggap untuk diselesaikan. Adapun ruang lingkup sanitasi adalah sebagai berikut : Air limbah domestic (Black water & Grey water) , pengelolaan persampahan, drainase lingkungan/tersier. Posko bencana yang terletak didaerah Desa Jandi Meriah kecamatan Tiganderket kabupaten karo menjadi perhatian pada kasus ini. Dengan adanya perencanaan ini diharapkan dapat meminimalisir terjadinya pencemaran lingkungan dan meningkatkan kondisi sanitasi sehingga tingkat kesehatan masyarakat dapat meningkat.
Application of ultraviolet light as an indoor disinfectant Khair, Hafizhul; Suryati, Isra; Utami, Rahmi
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2020): ABDIMAS TALENTA : Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.651 KB) | DOI: 10.32734/abdimastalenta.v5i2.4968

Abstract

WHO announced a new outbreak disease, COVID-19, as a public health emergency that has plagued the world since January 30, 2020. Critical readiness and response are needed, such as equipping healthcare workers and facility management with important information, procedures, and tools to be safe and working effectively in responding to the outbreak. One of the critical hospital's services facilities is an isolation room/inpatient room. This room needs to be sterilized using a disinfectant regularly. The use of disinfectants, such as chemical fluids can only kill vegetative cells from microbes/viruses. Microbes/viruses, especially in the form of vegetative cells, could be killed by ultraviolet exposure. The objectives of this service program are: (1) Improving the cleanliness of hospital inpatient rooms so that they can be used immediately in treating patients (2) Speeding up the process of cleaning/sterilizing hospital inpatient rooms/isolation given the increasing number of patients in monitoring for covid-19 cases. The problem with inpatient sanitation/isolation in hospitals is usually many microbes in the indoor air. Clean and sterile inpatient/isolation rooms are needed in the patient's care. Therefore, it is necessary to improve the process of cleaning /sterilizing the inpatient room/isolation in the hospital by using UV exposure.
PARTICIPATION OF LEADERS AND COMMUNITY IN SOLID WASTE MANAGEMENT IN INDONESIA TO REDUCE LANDFILL WASTE LOAD Indriyani Rachman; Qiyam Maulana Binu Soesanto; Hafizhul Khair; Toru Matsumoto
Journal of Community Based Environmental Engineering and Management Vol. 4 No. 2 (2020): Vol. 4 No.2, September 2020
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (243.997 KB) | DOI: 10.23969/jcbeem.v4i2.3348

Abstract

The increase in population and changes in community consumption patterns are one of the triggers for the increasing volume of waste. Therefore, changes are needed to manage waste so that the accumulation of waste can be handled properly. Government cooperation is considered important in solving problems. The volume of waste from its source has to be reduced. Therefore, it is important to empower the community in managing waste. This study compares the community participation in 3 villages in managing waste in their respective housing areas and waste management managed by the City Sanitation Department. Waste management in 3 locations became areas that can reduce the amount of waste going to the landfill. The data collection methods include interviews, observation and documentation, while data analysis uses descriptive qualitative techniques. Based on the results of the study, one form of leader and community participation in environmental improvement efforts is by participating in managing waste, participating in 3R workshops and giving labor contributions in the form of community service.
Development of Green Pavement for Reducing Oxides of Nitrogen (NOx) in the Ambient Air Kania Dewi; Hafizhul Khair; Moh. Irsyad
Journal of Engineering and Technological Sciences Vol. 48 No. 2 (2016)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2016.48.2.3

Abstract

The transportation sector is the biggest contributor to air pollution in Indonesia, especially in metropolitan cities. Gases such as oxides of nitrogen (NOx) are produced during the combustion of fossil fuels in the internal combustion of vehicle engines. Oxides of nitrogen such as nitric oxide (NO) and nitrogen dioxide (NO2) are important air pollutants, because they cause significant harm to human health and play an important role in being precursors of other dangerous pollutants such as photochemical smog. One of the simple ways to reduce NOx concentrations is utilizing a catalytic process involving UV light and semiconductor particles such as TiO2. Illuminated TiO2 UV light is capable of producing an electron (e-) and hole (h-) pair, which initiates a chemical reaction that alters the NOx to become NO3- or NO2-. A field scale paving block reactor coated with TiO2 placed by the roadside was exposed to UV light using various exposure times. The results showed that the sample with a composition of 200 g/m2 TiO2 was capable of adsorbing NOx gas at an average rate of 0.0046 mg/m2/minute. Additional costs due to TiO2 coating for every square meter of paving are IDR 13,180.
ANALISIS ISOPHLET KONSENTRASI DAN ESTIMASI POTENSI PENURUNAN KARBON MONOKSIDA DI KOTA MEDAN Isra' Suryati; Hafizhul Khair
Jurnal Dampak Vol 13, No 2 (2016)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.13.2.51-59.2016

Abstract

This study aims to map the concentration of carbon monoxide (CO) in Medan city and to estimate the potential reduction in carbon monoxide in some streets of Medan by applying mass transit based on simulation. This research was conducted by sampling CO in the 12 (twelve) points in Medan by grab sampling. CO concentration was analyzed using NDIR methods by CO Monitor tools. The results showed the concentration of CO in Medan between 1145.2 mg/m3 - 27484,7 mg/m3. This condition is still below the national ambient air quality standard of Government Regulation No. 41, 1999 (30,000 mg/m3). Based on the concentration isophlet map that points that have the highest concentration located in the surrounding roadside such as at Jl. SM Raja. To reduction the CO concentration in the ambient air around the roadside is necessary to plan programs and policies related to transportation. If the scenarios or simulation with application of the concept of mass transportation such as BRT CNG and BRT Diesel in some streets of Medan then will be able to reduce CO emissions of about 25.02% to 29.44%.Keywords: vehicle emissions, carbon monoxide, map isophlet, mass transitABSTRAKPenelitian ini bertujuan untuk memetakan konsentrasi gas karbon monoksida (CO) di Kota Medan dan melakukan estimasi potensi penurunan karbon monoksida di beberapa ruas jalan Kota Medan dengan menerapkan transportasi massal berbasis simulasi. Penelitian ini dilakukan dengan pengambilan sampel CO di 12 (dua belas) titik di Kota Medan secara grab sampling. Konsentrasi CO dianalisis menggunakan metode NDIR dengan alat sampling yaitu CO Monitor. Hasil penelitian menunjukkan konsentrasi CO di Kota Medan antara 1145,2 mg/m3 27484,7mg/m3. Kondisi ini masih dibawah baku mutu udara ambien nasional Peraturan Pemerintah No. 41 tahun 1999 (30.000 mg/m3). Berdasarkan peta isophlet konsentrasi tersebut bahwa titik-titik yang mempunyai konsentrasi tertinggi berlokasi di sekitar jalan salah satunya seperti di Jl. SM Raja. Untuk menurunkan konsentrasi CO di udara ambien di sekitar jalan perlu dilakukan perencanaan program dan kebijakan terkait transportasi. Apabila dilakukan skenario atau simulasi penerapan konsep transportasi massal berupa BRT CNG dan BRT Diesel di beberapa ruas jalan Kota Medan akan mampu mengurangi beban emisi CO sekitar 25,02% sampai dengan 29,44%.Kata kunci : emisi kendaraan, karbon monoksida, peta isophlet, transportasi massal
Analisis Mitigasi Banjir di Daerah Aliran Sungai Babura Berbasis Sistem Informasi Geografis (SIG) Meidina Zulfa Hanie; Ahmad Perwira Mulia Tarigan; Hafizhul Khair
Jurnal Dampak Vol 14, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.14.1.23-32.2017

Abstract

The regulation of Minister of Home Affairs Number 33 of 2006 about general directive of disaster mitigation is stating that one of important things to do in disaster mitigation is providing information and hazard map for all kind of disasters. This study mapped the inundation in Medan City from Babura River by integrating hydraulic model which simulated flood with Hydrologic Engineering Centre-River Analysis System (HEC-RAS) and then doing spatial analysist in Geographic Information System (GIS). Simulations were performed for events with return period of 10, 25, 50 and 100 years. The results indicated that the potential areas of inundation occurred in 13 Kelurahan of Medan City with 6 evacuation centers and 15 evacuation routes.Keywords: Babura, flood, GIS, HEC-RAS, mitigation.Abstrak-Peraturan Menteri Dalam Negeri No. 33 Tahun 2006 tentang pedoman umum mitigasi bencana menyebutkan bahwa salah satu hal penting dalam mitigasi bencana yaitu tersedianya informasi dan peta kawasan rawan bencana untuk tiap jenis bencana. Penelitian ini memetakan daerah genangan banjir di Kota Medan akibat meluapnya Sungai Babura dengan mengintegrasikan model hidrolika yangmensimulasikan banjir menggunakan program Hydrologic Engineering Centre- River Analysis System (HEC-RAS) dan kemudian memetakannya dalam Sistem Informasi Geografis (SIG). Peta yang dibuat yaitu kondisi genangan banjir dengan debit rancangan 10, 25, 50, dan 100 tahun. Dari hasil analisis dapatdiketahui bahwa terdapat 13 kelurahan di Kota Medan yang berpotensi tergenang banjir. Dari peta genangan banjir juga dapat diperoleh 6 titik evakuasi yang memenuhi syarat dan jalur evakuasi menuju titik-titik tersebut terdiri dari 15 jalur alternatif.Kata kunci: Babura, banjir, mitigasi, HEC-RAS, SIG.
Pemanfaatan Titanium Dioxide pada Trotoar untuk Mengurangi Gas Pencemar NOx di Udara Hafizhul Khair; Kania Dewi; Moh Irsyad
Jurnal Dampak Vol 13, No 1 (2016)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.13.1.35-43.2016

Abstract

The transportation is one of the largest contributor to air pollution in Indonesia, especially in large cities. Fuel gases from combustion in motor vehicles, such as oxides of nitrogen (NOx) will be emitted to the ambient air. Increasing the concentration of NOx in ambient air can be bad for human health, especially with regard to upper respiratory tract disease. Therefore, the development of methods which are environmentally friendly for controlling air pollution remains to be done. One simple way to reduce air pollution is utilizing a cheap process, namely sunlight and effect of catalyst of TiO2, to control the NO and NO2. This method requires no additional energy in addition to ultraviolet rays coming from the Sun. Paving-coated TiO2 ambient air set out in 6 hours, 12 hours, 18 hours and 24 hours. Nitrate and nitrite ions are formed by photocatalytic on the surface of the paving is dissolved with the aquades which is then measured by ion chromatography. The experimental results showed that the composition of TiO2 200 g/m2 of paving is able to adsorp NOx gas at an average rate of 0.0046 mg/m2/minutes, elevated concentrations of HNO3- along with the duration of exposure. Additional costs for every square meter paving is Rp. 13180. Keywords: Photocatalytic, nitrate ion, nitric ion, nitrogen oxides (NOx), titanium dioxide (TiO2), pavingABSTRAKSektor transportasi merupakan salah satu penyumbang pencemaran udara terbesar di Indonesia, terutama di kota-kota besar. Gas-gas hasil pembakaran bahan bakar kendaraan bermotor seperti oksida nitrogen (NOx) akan diemisikan ke udara ambien. Meningkatnya konsentrasi NOx di udara ambien dapat berdampak buruk bagi kesehatan manusia terutama berkaitan dengan penyakit saluran pernafasan bagian atas. Karena itu, pengembangan metode-metode yang ramah lingkungan untuk mengendalikan pencemaran udara harus dilakukan. Salah satu cara sederhana menurunkan pencemaran udara adalah memanfaatkan proses yang murah, yaitu sinar matahari dan efek katalis dari TiO2, untuk mengendalikan NO dan NO2. Metode ini tidak memerlukan energi tambahan selain sinar ultraviolet yang berasal dari matahari. Paving block berlapis TiO2 dipaparkan di udara ambient dalam waktu 6 jam, 12 jam, 18 jam dan 24 jam. Ion nitrat dan nitrit yang terbentuk akibat proses fotokatalitik di permukaan paving dilarutkan dengan aquades yang kemudian diukur dengan ion chromatografi. Hasil percobaan menunjukkan bahwa dengan tambahan TiO2 sebanyak 200 gram untuk setiap meter persegi paving mampu mengadsorpsi gas NOx dengan laju adsorpsi rata-rata sebesar 0,0046 mg/m2/menit, peningkatan konsentrasi HNO3- seiring dengan lamanya proses pemaparan di lapangan. Biaya tambahan untuk setiap meter persegi paving block yaitu Rp. 13180.Kata kunci: fotokatalitik, ion nitrat, ion nitrit, oksida nitrogen (NOx), titanium dioksida (TiO2), paving block
Pengaruh Aerasi Bertingkat dengan Kombinasi Saringan Pasir, Karbon Aktif, dan Zeolit dalam Menyisihkan Parameter Fe dan Mn dari Air Tanah di Pesantren Ar-Raudhatul Hasanah Abdul Hafidz Nainggolan; Ahmad Perwira Mulia Tarigan; Hafizhul Khair
Jurnal Dampak Vol 14, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.14.1.1-12.2017

Abstract

Groundwater if allowed to form a yellow precipitate indicates that contains high levels of Fe and Mn are high, so we need a method that is good in quality and economical way to improve the quality of groundwater. Experimental research that aims to determine the effect of aeration is terraced with a combination of sand, activated carbon and zeolite filter. Examination of the samples is done continuous sampling every 1 hour within 5 hours of the treatment 1 (aeration 2 levels followed by a sand, activated carbon, and zeolite filter), the treatment 2 (aeration 2 levels with a combination of zeolite followed by a sand, activated carbon, and zeolite filter), and the treatment 3 (sand, activated carbon, and zeolite filter). The best decreased levels of Fe is to use the treatment 1 with an efficiency decrease of 47,22 %. Whereas decreased levels of Mn best is on each treatment with the efficiency of a decrease of 100 %. Statistical analysis showed that there are differences in the levels of Fe in the tool 1, tool 2 and the tool 3 p (0.028 < 0.05). There is no difference in the levels of Mn on treatment 1, treatment 2, and treatment 3 p (0146 > 0.05).Keywords : Groundwater, Fe, Mn, Multilevel aeration, Sand activated carbon zeolite filterAbstrakAir tanah yang jika dibiarkan membentuk endapan kuning menunjukkan bahwa masih mengandung kadar Fe dan Mn yang tinggi, sehingga diperlukan suatu metode yang baik dalam kualitas dan ekonomis untuk meningkatkan kualitas air tanah. Penelitian yang bersifat eksperimen ini bertujuan untuk mengetahui pengaruh aerasi bertingkat dengan kombinasi saringan pasir, karbon aktif dan zeolit. Pemeriksaan sampel dilakukan secara continuous sampling setiap 1 jam sekali dalam 5 jam pada alat 1 (aerasi 2 tingkat dilanjutkan dengan saringan pasir, karbon aktif, dan zeolit), alat 2 (aerasi 2 tingkat dengan kombinasi zeolit dilanjutkan dengan saringan pasir, karbon aktif, dan zeolit), dan alat 3 (saringan pasir, karbon aktif, dan zeolit). Penurunan kadar Fe yang tertinggi ialah menggunakan alat 1 dengan efisiensi penurunan sebesar 47,22 %. Sedangkan penurunan kadar Mn yang terdapat pada setiap alat dengan efisiensi penurunan sebesar 100 %. Hasil uji statistik menunjukkan bahwa ada perbedaan konsentrasi Fe pada alat 1, alat 2 dan alat 3 p (0.028 < 0.05). Tidak ada perbedaan konsentrasi Mn pada alat 1, alat 2 dan alat 3 p (0.146 > 0.05). Kata Kunci: Aerasi Bertingkat, Air Tanah, Fe, Mn, Saringan Pasir Karbon Aktif Zeolit
Pengembangan Sistem Pengelolaan Sampah Kawasan Wisata Pantai Kota Pariaman dengan Pendekatan Reduce-Reuse-Recycle Rizki Aziz; Yommi Dewilda; Hafizhul Khair; Mikel Faklin
Jurnal Serambi Engineering Vol 5, No 3 (2020)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v5i3.2141

Abstract

The development of a reduce-reuse-recycle (3R) based solid waste management system was studied in the Pariaman City Beach Tourism Area which consists of Gandoriah Beach, Cermin Beach, Kata Beach, Angso Duo Island and Tangah Island. Solid waste managed is 2,646.813 m3/day. Development based on Permen PU No. 3 of 2013, with a scale of area management that serves 100% of the waste generated. The planned waste management system includes: sorting and storage, collection, processing at the Solid Waste Processing Site by Reduce Reuse Recycle approach (TPS3R) and transport to the landfill site. The needs of infrastructure and facility for solid waste management includes 100 liter of communal storage with three categories (compostable waste, recyclable waste and others) as many as 21 sets and 20 sets of communal storages as much as 4 sets. Waste collection uses indirect communal patterns with a 1.5 m3 motorized pedicab and one rattan basket 0.5 m3, processing at TPS 3R in by composting, grinding of coconut shell, making plastic handicrafts and selling recyclable plastic, paper and glass waste to third parties, transferring using a 6 m3 container followed by transportation from TPS 3R to Tungkal Selatan Landfill using arm roll truck.
Co-Authors Abdul Hafidz Nainggolan Ahmad Perwira Mulia Ahmad Perwira Mulia Tarigan Ahmad Perwira Mulia Tarigan Arif I’tisham Arliza Juairiani Lubis Grace Lordye Iga Yusmaidah Siregar Indriyani Rachman Isra&#039; Suryati Kania Dewi Kania Dewi Kania Dewi, Kania Meidina Zulfa Hanie Mikel Faklin Moh Irsyad Moh. Irsyad Moh. Irsyad, Moh. Qiyam Maulana Binu Soesanto Rahmi Utami Rahmi Utami Rizki Aziz Silda Rahayu Suryati, Isra Toru Matsumoto Toru Matsumoto Yommi Dewilda