JRSKT - Jurnal Riset Sains dan Kimia Terapan
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Synthesis of Nd-Pheophytin Complex and Its Hydrolysis into Nd-Pheophorbide from Katuk Leaves (Sauropus androgynous (L.) Merr)
No full textPheophorbide, as a chlorophyll derivative, has potential as a complexing ligand for heavy metals, including lanthanides. The synthesis of Nd-pheophytin complex and its more polar Nd-pheophorbide (pheophytin’s hydrolyzed product) were investigated using pheophytin isolated from Katuk’s (Sauropus androgynus L. Merr.) leaves. This study aims to determine the optimal reaction conditions and the complex characteristics. Pheophytin ligand and Nd were complexed under two different reaction conditions: room temperature and reflux at 65 °C for 10 hours. The pheophytin starting material was obtained by preparative thin-layer chromatography (PTLC), yielding 0.02 g. UV-vis analysis revealed characteristic absorption bands at 404 nm (Soret band) and 666 nm (Q band) in methanol, while FTIR spectra confirmed the presence of functional groups corresponding to pheophytin. The Nd-pheophytin complex formation was indicated by hypsochromic shifts in UV-vis spectra, suggesting the Nd³⁺ complexing. Fluorescence spectra between pheophytin and Nd-pheophytin showed distinct emission patterns, with pheophytin exhibiting peaks at 662 and 722 nm, while Nd-pheophytin displayed peaks with shoulders at 654 and 714 nm. Hydrolysis of Nd-pheophytin using 1 M NaOH at pH 10 produced Nd-pheophorbide. TLC analysis showed a decrease in the Rf value of Nd-pheophytin to Nd-pheophorbide from 0.95 to 0.43, with tailing, attributed to the higher polarity of pheophorbide. These findings confirm the successful synthesis and hydrolysis of the Nd-pheophytin complex
Air Quality Analysis in the Vicinity of Tanjung Lesung Beach, Banten
Full text linkBeaches are among the most popular recreational destinations for the public. This study aims to evaluate the air quality in the Tanjung Lesung coastal area, Pandeglang, Banten, by collecting air samples followed by laboratory analysis. The air pollutants measured in this study include Total Suspended Particulate (TSP), Sulfur Oxides (SOx), and volatile organic compounds such as Benzene, Toluene, and Xylene (BTX). Sampling methods employed were the impinger method for SOx, High Volume Air Sampler(HVAS) for TSP and Pb, and activated carbon and XAD adsorbents for BTX. The results showed that the concentration of TSP reached 421.08 µg/m³, exceeding the national ambient air quality standard of 230 µg/m³. The concentration of SOx was recorded at 0.7837 ppm, which remains within the permissible limit. Meanwhile, BTX compounds were not detected in the air samples, likely due to very low concentrations. These findings suggest that although the coastal air is relatively free from volatile organic compounds, a high level of particulate pollution was observed, which is suspected to originate from nearby industrial activities. Regular air quality monitoring is essential to ensure public health and maintain the comfort of tourist environments
Analisis Kadar Chemical Oxygen Demand (Cod) pada Air Limbah Domestik dengan Metode Refluks menggunakan Spektrofotometer Uv-Vis
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Air merupakan komponen vital bagi kelangsungan makhluk hidup. Dengan perkembangan sektor industri, seringkali terjadi pencemaran lingkungan perairan akibat limbah cair. Limbah cair tersebut berasal dari berbagai aktivitas seperti pemukiman, industri, dan perkantoran. Air yang tercemar, dapat menimbulkan penurunan kualitas air. Air yang memiliki kualitas yang tidak baik, dapat menimbulkan resiko berbagai penyakit dan tentunya dapat merusak sumber daya alam dan lingkungan. Salah satu upaya ntuk menjaga lingkungan, mengidentifikasi kualitas air limbah guna mengetahui tingkat bahayanya. Dalam mengidentifikasi kualitasi air limbah, diperlukan metode yang dapat mengidentifikasi dan mengurangi resiko dalam kerusakan lingkungan. Pengujian Chemical Oxygen Demand (COD) dalam air limbah dilakukan dengan menggunakan metode refluks dengan menggunakan Spektrofotometer UV-Vis sesuai dengan Standar Nasional Indonesia (SNI) 6989.2:2019. Proses pengujian yang dilakukan yaitu menggunakan sampe air limbah domestik yang dilarutkan bersama dengan larutan pencerna konsentrasi tinggi, larutan pencerna konsentrasi rendah (low digestion solution), larutan pereaksi asam sulfat, asam sulfamat (NH2SO3H), dan larutan standar kalium hidrogen phlatat (KHP). Hasil pengujian menunjukkan bahwa kadar COD memenuhi persyaratan yang telah ditetapkan, berada di bawah nilai batas maksimum yang ditetapkan oleh Peraturan Menteri Lingkungan Hidup dan Kehutanan Nomor P.68/MENLHK/SETJEN/KUM.1/8/2016.
Kata kunci: air limbah domestik, COD, spektrofotometer UV-Vis
Abstract
Water is a crucial component for the survival of living things. With the development of the industrial sector, there is often pollution of the aquatic environment due to liquid waste. The liquid waste comes from various activities such as settlements, industries, and offices. Polluted water can cause a decrease in water quality. Water that has poor quality can pose a risk of various diseases and of course can damage natural resources and the environment. One of the efforts to protect the environment is to identify the quality of wastewater to determine the level of danger. In identifying the quality of wastewater, a method is needed that can identify and reduce the risk of environmental damage. Chemical Oxygen Demand (COD) testing in wastewater is carried out using the reflux method using a UV-Vis Spectrophotometer in accordance with Indonesian National Standard (SNI) 6989.2: 2019. The testing process carried out is using domestic wastewater samples which are dissolved together with high concentration digestion solution, low concentration digestion solution (low digestion solution), sulfuric acid reagent solution, sulfamic acid (NH2SO3H), and potassium hydrogen phlatate (KHP) standard solution. The test results show that COD levels meet the predetermined requirements, being below the maximum limit value set by the Minister of Environment and Forestry Regulation No. P.68/MENLHK/SETJEN/KUM.1/8/2016.
Keywords: COD, domestic sewage spectrophotometry UV-Vi
Sintesis dan Karakterisasi NiFe₂O₄ Sebagai Adsorben Amonia dalam Air Akuarium Budidaya Ikan Mas (Cyprinus carpio)
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Nikel ferit (NiFe2O4) termasuk adsorben magnetik yang baik untuk polutan organik dan anorganik. Penelitian ini bertujuan untuk mengetahui kemampuan nikel ferit dalam mengadsorpsi amonia dalam air akuarium budidaya ikan mas (Cyprinus carpio). Nikel ferit disintesis dengan menggunakan metode hidrotermal. Pola difraksi XRD dan spektrum FTIR mengonfirmasi terbentuknya senyawa NiFe2O4. Hasil karakterisasi SAA menunjukkan NiFe2O4 memiliki tipe isoterm adsorpsi tipe IV (mesopori), dengan luas permukaan Brunauer Emmet Teller (BET) sebesar 18,6431 m²/g. Hasil karakterisasi SEM menunjukkan bentuk morfologi dari NiFe2O4 adalah bulat dan homogen. Data EDX menunjukkan bahwa unsur Ni, Fe dan O sebagai komponen penyusun utama bagi NiFe2O4. Nikel ferit hasil sintesis digunakan sebagai adsorben NH3 dalam air akuarium dan mampu mengadsorpsi NH3 sebesar 0,26 mg/L dengan efisiensi 96% dalam waktu 3 jam. Model kinetika yang sesuai untuk adsorpsi NH3 dalam air akuarium terhadap NiFe2O4 adalah model kinetika orde kedua semu dengan nilai koefisien determinasi (R2 = 0,9835), yang menunjukkan bahwa proses adsorpsi antara NH3 dalam air akuarium dengan NiFe2O4 adalah adsorpsi secara kimia
Kata-kata kunci: adsorben magnetik, amonia, nikel ferit (NiFe2O4)
Abstract
Nickel ferrite (NiFe2O4) is one of the good magnetic adsorbents for organic and inorganic pollutants. The aim of this study is to find out the ability of nickel ferrite to adsorb ammonia in aquarium water for goldfish (Cyprinus carpio) cultivation. Nickel ferrite was synthesized using hydrothermal method. XRD diffraction pattern and FTIR spectra confirmed the formation of NiFe2O4 compounds. The results of SAA characterization showed that NiFe2O4 has adsorption isotherm type-IV (mesoporous), with the surface area of Brunauer Emmet Teller (BET) 18.6431 m²/g. The results of SEM characterization show that the morfology form of NiFe2O4 are spherical and homogeneous. EDX data showed that Ni, Fe and O as the main component for NiFe2O4. The synthesized nickel ferrite was then used as NH3 adsorbent in aquarium water and able to adsorb NH3 equal to 0.26 mg/L with efficiency 96% in 3 hours. Kinetics model suitable for the adsorption NH3 in aquarium water toward NiFe2O4 is a pseudo-second-order with the value of determination coefficient is (R2 = 0.9835), which shows that the adsorption process between NH3 in aquarium water and NiFe2O4 is chemisorption.
Keywords: Amonia, Magnetic adsorbent, Nickel ferrite (NiFe2O4
Sintesis dan Karakterisasi ZVI dari FeCl₂ dengan Polifenol dari Kulit Pisang Kepok (Musa paradisiaca normalis)
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Besi bervalensi nol (ZVI) telah berhasil disintesis dengan menggunakan reduktor alami polifenol dari ekstrak kulit pisang kepok. Kajian terhadap karakteristik ZVI hasil sintesis berupa ukuran, kristalinitas dan morfologi telah dilakukan dengan menggunakan spektrofotometer UV-Vis, particle size analyzer (PSA), X-ray difractometer (XRD), scanning electron microscope (SEM), dan fourier transform infra-red (FT-IR). Pengukuran konsentrasi Fe2+ yang bereaksi dengan polifenol divariasikan terhadap waktu, yaitu: 0 jam, 3 jam, 24 jam, 48 jam dan 144 jam. Konsentrasi Fe2+ yang bereaksi dengan polifenol terbesar terjadi ketika waktu reaksi 3 jam, yaitu 110465,22 ppm. Distribusi ukuran partikel ZVI hasil sintesis diamati dalam waktu reaksi 0,5 jam; 1 jam; 2 jam dan 3 jam. Waktu reaksi 1 jam menghasilkan distribusi ukuran partikel yang paling rendah, yaitu Dv 10 = 383,93 nm; Dv 50 = 537,17 nm; dan Dv 90 = 851,36 nm dengan polydispersity Index (PDI) sebesar 0,1240. Difrasi sinar-X menunjukkan ZVI hasil sintesis merupakan amorf yang terdiri dari fasa iron dan magnetite dengan presentase masing-masing berturut-turut 17,5 % dan 82,5%.
Kata kunci: aglomerasi, besi bervalensi nol (ZVI), reduksi garam besi
Abstract
Zero valent iron (ZVI) has been synthesized by using a natural reductant polyphenols extract from peel kepok banana. The study on the characteristics ZVI synthesized in the form of size, crystallinity and morphology has been carried out by using UV-Vis spectrophotometer, particle size analyzer (PSA), X-ray difractometer (XRD), scanning electron microscope (SEM), and fourier transform infra-red (FT-IR). Measurement of the concentration of Fe2+ which reacts with polyphenols varied with respect to time, ie: 0 hours, 3 hours, 24 hours, 48 hours and 144 hours. The concentration of Fe2+ which reacts with the largest polyphenols occur when reaction time of 3 hours, ie 110,465.22 ppm. ZVI particle size distribution of the results of the synthesis was observed within the reaction time of 0.5 hours; 1 hour; 2 hours and 3 hours. Reaction time of 1 hour to produce a particle size distribution of the lowest, ie Dv 10 = 383.93 nm; Dv 50 = 537.17 nm; and Dv 90 = 851.36 nm with a polydispersity index (PDI) of 0.1240. X-ray diffraction showed that synthesized ZVI is an amorphous phase consisting of iron and magnetite with the percentage of each respectively 17.5% and 82.5%.
Keywords: agglomeration, reduction of iron salt, zero valent iron (ZVI
Analisis Kandungan Residu Pestisida pada Cabai dan Kentang menggunakan Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
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Pestisida dalam pertanian merupakan hal yang umum digunakan oleh petani dalam mengendalikan hama dan penyakit tanaman. Namun, penggunaan pestisida berlebihan akan meninggalkan residu pestisida dalam jumlah besar yang dapat menimbulkan masalah kesehatan. Oleh karena itu, perlunya pengujian kadar residu pestisida (chlorpyrifos, diazinon dan dimethoate) pada cabai dan kentang yang mengacu pada nilai batas maksimum cemaran berdasarkan PERMENTAN Nomor 53 Tahun 2018. Pengujian dilakukan dengan metode QuEChERS EN 15662:2018 yang terdiri dari tahapan ekstraksi dan clean-up dengan penetapan kadar menggunakan LC-MS/MS. Hasil pengujian menunjukkan kadar residu pestisida chlorpyrifos, diazinon dan dimethoate dalam cabai dan kentang berada di bawah Batas Maksimum Residu yang telah ditetapkan oleh PERMENTAN Nomor 53 Tahun 2018 sehingga aman untuk dikonsumsi.
Kata kunci: LC-MS/MS, residu pestisida, QuEChERS
Abstract
Farmers frequently use pesticides in agriculture to control pests and plant diseases. However, excessive use of pesticides will leave large amounts of pesticide residue, which can cause health problems. Therefore, it is necessary to test pesticide residue levels (chlorpyrifos, diazinon, and dimethoate) on chilies and potatoes, which refers to the maximum limit value of contamination based on PERMENTAN Number 53 of 2018. The QuEChERS EN 15662:2018 method is used for the test. It has stages for extraction, clean-up, and an assay using LC-MS/MS. The test results demonstrate that chilies and potatoes do not contain pesticides chlorpyrifos, diazinon, or dimethoate above Permentan Number 53 of the 2018 Maximum Residue Limit. This result means that foods are safe to eat.
Keywords: LC-MS/MS, pesticide residues, QuEChER
Analisis Kualitas Air Permukaan di Kabupaten Karangasem Berdasarkan Parameter Fisika, Kimia dan Biologi
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Sungai adalah salah satu bentuk dari suatu ekosistem perairan terbuka yang mengalir dari hulu ke hilir yang memiliki arti penting bagi kehidupan masyarakat serta pemanfaatan yang luas. Informasi mengenai kualitas air sungai sangat penting guna memberikan gambaran mengenai pengaruh pemanfaatan air sungai tersebut oleh manusia. Penelitian ini merupakan penelitian deskriptif tentang kualitas air sungai di Kabupaten Karangasem berdasarkan parameter fisika, kimia dan biologis dari 4 sungai dari total 54 sungai di wilayah Kabupaten Karangasem. Sungai yang diteliti yaitu Tukad Nyuling, Tukad Jangga, Tukad Pati dan Tukad Kerkuk dibandingkan dengan baku mutu Pemerintah yang diatur dalam Peraturan Gubernur No 16 Tahun 2016. tentang Baku Mutu Lingkungan Hidup dan Kriteria Baku Kerusakan Lingkungan Hidup melalui metode Indeks Pencemaran. Hasilnya, Sungai Nyuling memiliki indeks pencemaran 1.23 di hulu, 1.59 di tengah dan 1.31 di hilir. Sungai Jangga memiliki indeks pencemaran 1.43 di hulu, 1.67 di tengah dan 1.88 di hilir. Sungai Pati memiliki indeks pencemaran 1.98 di hulu, 1.29 di tengah dan 3.33 di hilir. Sedangkan, Sungai Kerkuk memiliki nilai indeks pencemaran 1.39 di hulu, 1.40 di tengah dan 3.29 di hilir. Semua titik dari keempat sungai tersebut termasuk dalam kategori cemar ringan.
Kata kunci: air permukaan, kualitas air, sungai
Abstract
A river is one kind of an open water ecosystem that flows from upstream to downstream which has an important meaning for people's lives and for its wide use. The information about river water quality is very important in order to provide an overview of the effects of river water used by human. This research is a descriptive study of river water quality in Karangasem Regency based on the physical, chemical and biological parameters of 4 rivers from a total of 54 rivers in the Karangasem Regency area. The rivers studied were Tukad Nyuling, Tukad Jangga, Tukad Pati and Tukad Kerkuk compared to the Government quality standards stipulated in Governor Regulation No. 16/2016 on Environmental Quality Standards and Environmental Damage Standard Criteria through the Pollution Index method. The result shows that the Nyuling River has a pollution index of 1.23 in the upstream, 1.59 in the middle and 1.31 in the downstream. Jangga River has a pollution index of 1.43 in the upstream, 1.67 in the middle and 1.88 in the downstream.Pati River has a pollution index of 1.98 in the upstream, 1.29 in the middle and 3.33 in the downstream. While the Kerkuk River has a pollution index of 1.39 in the upstream, 1.40 in the middle and 3.29 in the downstream. The river points of that four rivers are categorized as light pollutants
Keywords: river, surface water, water qualit
Validasi Metode Analisis Fosfor pada Sayuran dengan Pereduksi Stannous Chloride menggunakan Spektrofotometri Uv-Vis
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Analisis fosfor dalam sayuran secara spektrofotometri UV-Vis telah dilakukan. Penelitian ini bertujuan mendapatkan kondisi optimum untuk analisis fosfor secara spektrofotometri UV-Vis, mendapatkan informasi pereduksi yang optimal dan pengaplikasian metode analisis fosfor yang memenuhi parameter validasi metode. Penelitian diawali dengan menentukan kondisi optimum analisis fosfat dengan spektrofotometri UV-Vis menggunakan pereaksi ammonium molibdat dan direduksi dengan timah (II) klorida dalam lingkungan asam menggunakan asam klorida (HCl). Selanjutnya metode analisis divalidasi berdasarkan parameter validasi metode. Reaksi molibdenum biru menghasilkan senyawa kompleks heterofosfomolibdat yang memiliki panjang gelombang maksimum 729 nm. Hasil validasi metode analisis fosfat yang direduksi dengan timah (II) klorida memiliki linieritas metode dengan R2=0,9983 pada rentang 0 – 0,05 mg L-1 . Absorptivitas molar sebesar 2,093 x 105 L mol-1 cm-1 . Serta batas deteksi sebesar 1,41 x 10-3 mg L-1 dan batas kuantisasi sebesar 4,28 x 10-3 mg L-1 . Nilai presisi dinyatakan sebagai persen standar deviasi relatif %RSD pada jagung, brokoli dan buncis masing-masing sebesar 1,93%, 1,37% dan 1,25%. Perolehan kembali didapatkan pada masingmasing sampel sayuran berkisar 99,36% - 109,50%. Berdasarkan hasil penelitian menunjukan fosfat yang terkandung dalam sayuran jagung, brokoli dan buncis tidak melebihi baku mutu menurut Persatuan Ahli Gizi Indonesia (PERSAGI).
Kata kunci: fosfor, timah (II) klorida, spektrofotometri UV-Vis
Abstract
Phosphorus analysis in vegetables using UV-Vis spectrophotometry has been carried out. This research aims to obtain optimum conditions for phosphorus analysis using UV-Vis spectrophotometry, obtaining optimal reducing information and application of phosphorus analysis methods that meet method validation parameters. The research began by determining the optimum conditions for phosphate analysis using UV-Vis spectrophotometry using reagents ammonium molybdate and reduced with tin (II) chloride in an acidic environment using hydrochloric acid (HCl). Next, the analysis method is validated based on the method validation parameters. The molybdenum blue reaction produces a heterophosphomolybdate complex compound which has a maximum wavelength 729 nm. The validation results of the analytical method for phosphate reduced with tin (II) chloride have method linearity with R2=0.9983 in the range 0 – 0.05 mg L-1 . The molar absorptivity is 2.093 x 105 L mol-1 cm-1. And the detection limit is 1.41 x 10-3 mg L-1 and a quantitation limit of 4.28 x 10-3 mg L-1. Precision values are expressed as percent relative standard deviation %RSD in corn, broccoli and beans respectively 1.93%, 1.37% and 1.25%. The recovery obtained for each vegetable sample ranged from 99.36 % - 109.50%. There are no phosphates contained in corn, broccoli and green beans exceeds quality standards according to the Persatuan Ahli Gizi Indonesia (PERSAGI)
Keywords: phospore, tin (II) chloride, UV-Vis Spectrophotometr
Analisis Kandungan Logam Dan Ftalat pada Komponen Eletronik menggunakan XRF dan Py/GC-MS
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Perkembangan elektronik pada bidang industri mempengaruhi kehidupan sehari hari. Penggunaannnya yang berlebihan dapat meningkatkan resiko berbahaya pada penggunanya. Salah satu faktor bahaya pada komponen elektronik yang digunakan adalah terdapatnya logam dan flatat. RoHS merupakan regulasi Uni Eropa yang mengatur pembatasan penggunaan zat-zat berbahaya seperti Pb, Hg, Cd, dan Cr6+, serta PBB, PBDE, DIBP, DBP, BBP, dan DEHP dalam produk-produk elektronik dan listrik. Penelitian ini bertujuan untuk mengetahui kandungan zat-zat berbahaya yang diatur oleh RoHS pada sampel komponen elektronik. Metode yang digunakan adalah skrining awal menggunakan XRF dan penetapan kadar ftalat dengan Py/GC-MS. Hasil penelitian menunjukkan bahwa sampel tidak mengandung logam berat (Cd, Hg, Cr), DIBP, BBP, dan turunan Br. Kandungan Pb, DBP, dan DEHP yang terdeteksi memiliki konsentrasi rendah dan tidak melebihi batas maksimum penggunaan ftalat yang ditetapkan oleh RoHS, sehingga part elektronik tersebut dapat digunakan dalam produksi.
Kata kunci: elektronik, ftalat, logam, Py-GC-MS, RoHS, XRF
Abstract
The development of electronics in the industrial sector affects daily life. Its excessive use can increase the risk of harm to its users. One of the hazardous factors in the electronic components used is the presence of metals and flattates. RoHS is a European Union regulation that regulates restrictions on the use of hazardous substances such as Pb, Hg, Cd, and Cr6+, as well as PBB, PBDE, DIBP, DBP, BBP, and DEHP in electronic and electrical products. This study aims to determine the content of RoHS-regulated hazardous substances in electronic component samples. The methods used were preliminary screening using XRF and determination of phthalate levels by Py/GC-MS. The results showed that the samples did not contain heavy metals (Cd, Hg, Cr), DIBP, BBP, and Br derivatives. The detected Pb, DBP, and DEHP contents had low concentrations and did not exceed the maximum limit of phthalate use set by RoHS, so the electronic parts could be used in production.
Keywords:electronics, metals, phthalates, Py-GC-MS, RoHS, XR
Pengolahan Limbah Cair Peternakan Babi menggunakan Metode Adsorpsi dan Filtrasi
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Limbah ternak merupakan sisa buangan dari suatu kegiatan usaha peternakan seperti usaha pemeliharaan ternak, pengolahan produk ternak, rumah potong hewan, dan lainnya. Penelitian ini bertujuan untuk mengetahui tentang Pengolahan limbah cair dengan metode adsorpsi dan filtrasi di peternakan babi Desa Kukuh Kecamatan Marga Kabupaten Tabanan. Design dalam penelitian ini menggunakan the one group pretest-posttest design yaitu melakukan pretest atau pengujian sebelum dilakukan treatment kemudian hasil dari treatment di lakukan pengujian, hasil dari perlakukan tersebut dapat di bandingkan keadaan sebelum dan sesudah diberikan treatment. Berdasarkan hasil penelitian dan pemeriksaan parameter sesuai dengan baku mutu standar Peraturan Menteri Negara Lingkungan Hidup Nomor 11 Tahun 2009 Tentang Baku Mutu Air Limbah Bagi Usaha Dan/Atau Kegiatan Peternakan Sapi Dan Babi. Hasil Kadar Biochemical Oxygen Demand (BOD) pada ketebalan media 50 cm dan 40 cm memenuhi syarat, sedangkan pada ketebalan media 20 cm hasilnya tidak memenuhi syarat. Kadar Chemical Oxygen Demand (COD) dengan ketebalan media 50 cm, 40 cm dan 20 cm mendapatkan hasil tidak memenuhi syarat. Kadar Total Suspended Solid (TSS) pada ketebalan media 50 cm dan 40 cm hasilnya memenuhi syarat sedangkan pada ketebalan media 20 cm hasilnya tidak memenuhi syarat. Pemeriksaan pH mendapat hasil memenuhi syarat, Pemeriksaan Bau mendapat hasil tidak memenuhi syarat, pemeriksaan warna dan suhu mendapatkan hasil memenuhi syarat. Efektifitas pengolahan limbah cair pada peternakan babi mendapatkan hasil pada media pengolahan dari masing-masing ketebalan media yaitu 50 cm, 40 cm dan 20 cm cenderung mengalami penurunan setelah dilakukan pengolahan air limbah cair dengan metode filtrasi dan adsorpsi
Kata kunci: limbah ternak, metode adsorpsi, metode filtrasi
Abstract
Livestock waste is kind of waste produced from the left-over livestock business such as breeding, livestock products, or slaughterhouse etc. This research aimed to know about piggery liquid waste treatment using adsorption and filtration methods in Kukuh village, Marga district, Tabanan regency. The design in this research was the one group pre-test and post test design. The researcher did the pretest before doing the treatment and the result of the treatment would be evaluated in which both results could be compared, the circumstances before and after the treatment were implemented. In accordance with the findings of the research and assessment parameter of quality standard set by Minister Environment Regulation No. 11 in 2009 about standard quality of liquid waste for business or activities in cattle farm and piggery, it was concluded that the result of Biochemical Oxygen Demand (BOD) in media thickness of 50 cm and 40 cm qualified the standard but the result in 20 cm media thickness didn't fullfill the standard. In regard to Chemical Oxygen Demand (COD) in media thickness of 50 cm, 40 cm and 20 cm all didn't qualify for the set standard. Meanwhile, Total Suspended Solid (TSS) in media thickness of 50 cm and 40 cm qualified the standard but the result in 20 cm media thickness didn't fullfill the standard. In addition, PH assessment qualify for the standard. Odor assessment result didn't fullfill the standard. Whereas color and temperature assessments qualified for the standard. In conclusion, the effectiveness of piggery liquid waste treatment resulted on media processing in each thickness of 50 cm, 40 cm, 20 cm tended to decrease after liquid waste treatment adsorption and filtration methods were implemented.
Keywords: adsorption methods, filtration methods, livestock wast