Ditapis dengan
Penggunaan Responses Surface Methodology Untuk Optimasi Penyisihan Amonia Den…
ABSTRACT Ammonia in wastewater can harm aquatic environments due to its toxicity, with LC50 values of 0.56–2.36 ppm for fish and 1.10–22.8 ppm for invertebrates within 24–96 hours of exposure. It contributes to eutrophication, microbial death, and reduced dissolved oxygen levels. Conventional are still limited, especially under high ammonia concentrations. Therefore, this study appli…
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- 2107114029
Optimasi Pengolahan Fenol Dengan Immobilized Microalgae Beads Menggunakan Res…
ABSTRACT Phenol is a toxic aromatic compound commonly found in industrial wastewater and has the potential to pollute aquatic environments. Treating phenol poses a challenge due to its resistance to biological degradation, high solubility in water, and its carcinogenic and bioaccumulative nature. Therefore, an effective and environmentally friendly treatment method is required. . One of th…
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- 2107113417
Optimasi Penyisihan Amonia Oleh Immobilized Microalgal-Bacterial Beads (Imbb)…
ABSTRACT Wastewater often contains pollutants such as ammonia, which can disrupt ecological balance. This study aimed to determine the optimum conditions, develop an empirical model, and characterize Immobilized Microalgal–Bacterial Beads (IMBB) for ammonia removal using Response Surface Methodology (RSM). The IMBB were formed by immobilizing microalgae Chlorella sp. and bacteria Nitros…
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- 2107110272
Analisis Kandungan Mikroplastik Di Udara Dari Aktivitas Transportasi Di Kecam…
ABSTRACT The rise in traffic density in urban regions presents a threat of microplastic emission into the atmosphere. Road dust now contains microplastics, which are plastic particles that range in size from 0.001 to 5 mm. Due to their little weight and ease of airborne suspension, these particles have the potential to lower air quality and endanger human health. This study is to examine t…
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- 2107113424
Analisis Hubungan Tingkat Kebisingan Dengan Noiseinduced Hearing Loss (Nihl) …
ABSTRACT PKS. X in Tapung is one of the strategic business units in supporting the production of crude palm oil (CPO). One of its main operational units is the engine room station equipped with a Genset, Back Pressure Vessel (BPV), Turbine, and Main Panel. This unit produces noise levels that exceed the Threshold Limit Value (NAB) of 85 dB(A), thus risking hearing loss in workers. This stu…
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- 2007113895
Dispersi No2, So2 Dan Partikulat Hasil Uji Emisi Boiler, Tungku Bakar Dan Gen…
ABSTRACT The PT. X Palm Oil Mill is one of the palm oil producers in Riau. In its oil processing activities, this factory emits NO2, SO2 and Particulate emissions from the boiler chimney, furnace, and generator. In order to prevent the impact of these emissions, dispersion modeling needs to be carried out using the AERMOD View application consisting of AERMET and AERMAP. The purpose of thi…
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- 1807125061
Identifikasi Dan Analisis Jejak Karbon Dari Aktivitas Head Office Pt Bumitama…
ABSTRACT Global warming caused by increased concentrations of greenhouse gases (GHGs) requires mitigation efforts from various sectors, including the office sector. This study aims to identify and analyze the carbon footprint generated from the direct and indirect activities of the Head Office of PT Bumitama Gunajaya Agro, located in South Jakarta. The method used refer…
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- 2107111375
Universitas Riau – F.Teknik – Elektroanalisis Dan Evaluasi Kriteria Green…
ABSTRACT Implementation of development on a project scale has great potential for environmental damage to occur. The building and construction sector contributed approximately 32% of global energy consumption and 34% of energy-related carbon dioxide (CO2) emissions in 2023. There has been an increase in the average daily temperature of at least 0.74ºC per year over the past two decades with t…
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- 2007113906
Pengaruh Variasi Konsentrasi Naoh Pada Karbon Aktif Limbah Baglog Jamur Tiram…
ABSTRACT Oyster mushroom baglog waste can produce 1 to 2 tons of waste in one harvest cycle. This waste has a fairly high lignocellulose content so that it has the potential to be used as a basic material for making activated carbon. This study aims to determine the effect of variations in NaOH activation concentration on the adsorption capacity of activated carbon from baglog waste in rem…
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- 20071113901
Bioremediasi Tanah Terkontaminasi Minyak Bumi Dengan Variasi Rasio Nutrien Da…
ABSTRACT Petroleum spills on soil can cause significant environmental impacts and pose a great danger to humans and other living things. Petroleum is a hazardous and toxic material so that petroleum contaminated soil needs to be managed properly. Bioremediation is the most efficient process in degrading petroleum in soil by utilizing microorganisms. Microorganisms require nutrients C, N, and P…
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- 2007113905
Pengaruh Waktu Kontak Dan Debit Aliran Terhadap Penyisihan Kadar Fe Pada Air …
ABSTRACT Groundwater in peat areas has a high Fe content. One method of processing to remove Fe levels in groundwater in peat areas is the aeration method using a cascade aerator. Aeration is the process of adding oxygen to water so that it can cause an Fe oxidation reaction which will form Fe(OH)3 precipitates. This research aims to analyze the ability of cascade aerators to reduce Fe le…
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- 1807111270
Bioremediasi Tanah Terkontaminasi Minyak Bumi Menggunakan Pupuk Kascing, Eco-…
ABSTRACT The high production of petroleum increases the potential for soil pollution due to petroleum spills. Petroleum consists of petroleum hydrocarbon (PH) compounds that can be detrimental to the environment. Bioremediation is the most suitable technique to remove petroleum contaminants. Therefore, this study aimed to obtain the optimum composition of biostimulants through biostimulation w…
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- 2007125624
Regenerasi Kimiaadsorben Karbon Aktif Tongkol Jagung Dengan Variasi Jenis Dan…
ABSTRAK Activated carbon has been widely used to remove organic and inorganic pollutants from water and wastewater. The use of activated carbon as an adsorbent in the adsorption process will produce saturated adsorbents which when they reach their maximum adsorption capacity will cause a decrease in adsorption effectiveness, so that the adsorbent is no longer able to absorb pollutants/ contami…
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- 2007114011
Pengaruh Penambahan Limbah Plastik Polyethylene Terhadap Kuat Tekan Paving Block
ABSTRACT Polyethylene waste is one of the plastic wastes that can be utilized in the construction industry. This research aims to study the use of polyethylene waste as a substitute for sand in the mixture for making paving blocks. The quality of paving blocks is determined by compressive strength testing. This research was designed with a mixture ratio of polyethylene, namely 5%, 10%, 15%…
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- 1907156306
Analisis Konsentrasi Pm2.5, Co Dan No2 Serta Laju Pembakaran Biopelet Dari Am…
ABSTRACT Sago pulp is a biomass waste that is rich in cellulose and starch as a by-product produced by sago flour processing factories that have not been optimally utilized. In this study, sago pulp waste is processed into biopellets as an alternative energy source to replace fuel in households. This study aims to analyze the physical characteristics of biopellets and determine the best variat…
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- 2007113896
Sintesis Dan Karakterisasi Karbon Aktif Dari Tandan Kosong Sawit Sebagai Ad…
ABSTRACT Empty Palm Fruit Bunch (EFB) is a by-product of the palm oil industry that is abundant in Riau Province. The high cellulose content in EFB has the potential to be developed as a basic material for making activated carbon, which is the type of adsorbent most widely developed for heavy metal adsorption. This study aims to analyze the best carbonization temperature and time on the qu…
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- 2007113894
Pengaruh Ph Dan Kecepatan Pengadukan Terhadap Adsorpsi Logam Pb Dan Cu Menggu…
ABSTRACT Printing wastewater contains heavy metals such as lead (Pb) and copper (Cu), which are toxic. This study aimed to evaluate the effect of pH and stirring speed on the adsorption efficiency and capacity of Pb and Cu using a composite adsorbent of Spent Bleaching Earth (SBE) and Spent Mushroom Substrate (SMS) with a composition ratio of 25% SBE and 75% SMS. Characterization was conducted…
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- 2007110364
Proses Adsorpsi Logam Pb Dan Cu Menggunakan Adsorben Komposit Spent Mushroom …
ABSTRACT Industrial printing wastewater contains heavy metals such as lead (Pb) and copper (Cu), which are toxic and difficult to degrade, thus requiring an effective treatment method. One alternative to reduce heavy metals is the adsorption method using a composite adsorbent made from Spent Mushroom Substrate (SMS) and Spent Bleaching Earth (SBE). This study aims to determine the removal …
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- 2007110737
Pengaruh Variasi Komposisi Serasah Daun Dan Ranting Terhadap Karakteristik Bi…
ABSTRACT The problem of leaf litter and ketapang twig accumulation at the Faculty of Engineering, University of Riau, has prompted innovative efforts in its management. One approach that can be taken is to apply TOSS (Waste Management Technology at the Source) in managing this waste. This study aims to analyze the physical characteristics of biopellets produced from the TOSS biodrying pro…
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- 2007134774
Pemanfaatan Tandan Kosong Sawit Sebagai Adsorben Logam Cu2+ Menggunakan Aktiv…
ABSTRACT The increase in palm oil production in Indonesia produces abundant solid waste, one of which is empty oil palm bunches (EFB) which has the potential to be used as raw material for activated carbon. This study aims to analyze the best concentration and activation time on the quality of EFB activated carbon, the ability of EFB activated carbon to adsorb Cu²⁺ metal ions, and to an…
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- 2007110731
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