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Maryana Maryana - One of the best experts on this subject based on the ideXlab platform.
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Fitoremediasi Menggunakan Variasi Kombinasi Tanaman Kiambang (Salvinia molesta M) dan Tanaman Kayu Apu (Pistia Stratiotes L) dalam Menurunkan Besi (Fe) dengan Sistem Batch
'Fakultas Sains dan Teknologi UINSA', 2020Co-Authors: Maryana Maryana, Oktorina Sarita, Auvaria, Shinfi Wazna, Setyowati, Rr Diah NugraheniAbstract:The increased industrial development can cause pollution and environmental damage. Iron metal (Fe) is an essential metal whose existence is a certain amount needed by living organisms, but in excessive amounts will cause toxic effects. To overcome this problem, an environmentally friendly technology is needed, namely phytoremediation technology using kiambang plants (Salvinia molesta M) and Kayu apu plants (Pistia Stratiotes L). The purpose of this study was to determine the efficiency of reducing the concentration of iron (Fe) in ground water using a combination of kiambang (Salvinia molesta M) and a combination of Kayu apu plants (Pistia Stratiotes L). This research method is experimental and the research approach used is qualitative analysis. The process of phytoremediation with a batch system using a Kiambang plant (Salvinia molesta M) and wooden apu (Pistia Stratiotes L) as much as 300 grams (uses a variation of the amount different from the same weight (25:75) (150:150) (75:25)) in each reactor. The results showed a decline on the 12th day. In the reactor treatment group of 1 is 0.30 mg/l and efficiency at 47%, reactor 2 is 0.06 mg/l and efficiency of 93%, and reactor 3 is 0.49 mg/l and efficiency of 9%. The highest efficiency value in decreasing the concentration of iron (Fe) in groundwater using variations in the combination of Kiambang plant (Salvinia molesta M) and the wooded plant (Pistia Stratiotes L) in the reactor treatment group 2 is 93% on the 12th day.Meningkatnya pembangunan industri dapat menyebabkan pencemaran dan kerusakan lingkungan. Logam besi (Fe) merupakan logam esensial yang keberadaannya dalam jumlah tertentu sangat dibutuhkan oleh organisme hidup, namun dalam jumlah berlebihan akan menimbulkan efek racun. Untuk mengatasi permasalahan tersebut maka diperlukan sebuah teknologi yang ramah lingkungan yakni dengan teknologi fitoremediasi menggunakan tanaman kiambang (Salvinia molesta M) dan tanaman kayu apu (Pistia Stratiotes L). Tujuan penelitian ini adalah mengetahui efisiensi penurunan konsentrasi Besi (Fe) pada air tanah menggunakan variasi kombinasi tanaman kiambang (Salvinia molesta M) dan tanaman kayu apu (Pistia Stratiotes L). Metode penelitian ini bersifat eksperimental dan pendekatan penelitian yang digunakan adalah analisa kualitatif. Proses fitoremediasi dengan sistem batch menggunakan tanaman kiambang (Salvinia molesta M) dan tanaman kayu apu (Pistia Stratiotes L) sebanyak 300 gram (menggunakan variasi jumlah berbeda dengan berat yang sama yaitu (25:75) (150:150) (75:25)) pada setiap reaktor. Hasil penelitian menunjukkan terjadinya penurunanan pada hari ke-12. Pada kelompok perlakuan reaktor 1 yaitu 0,30 mg/l dan efisiensi sebesar 47%, reaktor 2 yaitu 0,06 mg/l dan efisiensi sebesar 93%, dan reaktor 3 yaitu 0,49 mg/l dan efisiensi sebesar 9%. Nilai efisiensi tertinggi pada penurunan konsentrasi Besi (Fe) pada air tanah menggunakan variasi kombinasi tanaman kiambang (Salvinia molesta M) dan tanaman kayu apu (Pistia Stratiotes L) terdapat pada reaktor 2 yaitu sebesar 93% pada harri ke-12
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Fitoremediasi menggunakan variasi kombinasi tanaman Kiambang (Salvinia molesta M) dan tanaman kayu Apu (Pistia Stratiotes L) dalam menurunkan besi (Fe) dengan sistem batch
2020Co-Authors: Maryana MaryanaAbstract:Meningkatnya pembangunan industri dapat menyebabkan pencemaran dan kerusakan lingkungan. Logam besi (Fe) merupakan logam esensial yang keberadaannya dalam jumlah tertentu sangat dibutuhkan oleh organisme hidup, namun dalam jumlah berlebihan akan menimbulkan efek racun. Logam berat besi (Fe) masih sering dijumpai dalam air tanah. Untuk mengatasi permasalahan yang ada maka diperlukan sebuah teknologi yang ramah lingkungan yakni dengan teknologi fitoremediasi. Fitoremediator yang akan digunakan dalam bentuk tanaman air yaitu tanaman kiambang (Salvinia molesta M) dan tanaman kayu apu (Pistia Stratiotes L). Tujuan penelitian ini adalah mengetahui efisiensi penurunan konsentrasi Besi (Fe) pada air tanah menggunakan variasi kombinasi tanaman kiambang (Salvinia molesta M) dan tanaman kayu apu (Pistia Stratiotes L). Metode penelitian ini bersifat eksperimental dan pendekatan penelitian yang digunakan adalah analisa kualitatif. Proses fitoremediasi dengan sistem batch menggunakan tanaman kiambang (Salvinia molesta M) dan tanaman kayu apu (Pistia Stratiotes L) sebanyak 300 gram (menggunakan variasi jumlah berbeda dengan berat yang sama yaitu (25:75) (150:150) (75:25)) pada setiap reaktor. Hasil penelitian menunjukkan terjadi penurunanan pada hari ke-12 pada kelompok perlakuan reaktor 1 dengan perbandingan (25:75) tanaman yaitu 0,30 mg/l dan efisiensi sebesar 47%. Sedangkan pada kelompok perlakuan reaktor 2 dengan perbandingan (150:150) tanaman yaitu 0,06 mg/l dan efisiensi sebesar 93%. Pada kelompok perlakuan reaktor 3 dengan perbandingan (75:25) tanaman yaitu 0,49 mg/l dan efisiensi sebesar 9%. Nilai efisiensi tertinggi pada penurunan konsentrasi Besi (Fe) pada air tanah menggunakan variasi kombinasi tanaman kiambang (Salvinia molesta M) dan tanaman kayu apu (Pistia Stratiotes L) terdapat pada kelompok perlakuan reaktor 2 yaitu sebesar 93% pada hari ke-12
Sheena Kumari - One of the best experts on this subject based on the ideXlab platform.
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biohydrogen fermentation from Pistia Stratiotes aquatic weed using mixed and pure bacterial cultures
International Journal of Hydrogen Energy, 2019Co-Authors: Nonsikelelo Precios Mthethwa, Mahmoud Nasr, Sammy Lewis Kiambi, Sheena KumariAbstract:Abstract In this study, mixed and pure bacterial cultures are inoculated in a dark-fermentation process for hydrogen production from Pistia Stratiotes hydrolysate. The maximum hydrogen yield (HY) of 2.3 molH₂/molglucose (energy yield 0.3 kJ/gDW) is obtained at pH 5.5, fermentation time 6.7 h, substrate-to-biomass ratio (S/X) 0.5 gCOD/gVSS, and 25 °C using a mixed culture system. The plots of HY versus pH and time result in quadratic linear concave-up curves, whereas the effects of S/X and temperature on HY cause quadratic concave-up and flat curves, respectively. Fluorescent in situ hybridization (FISH) indicates that the mixed culture contains multiple H2-producers including Enterobacteriaceae, Gammaproteobacteria, Betaproteobacteria, and Clostridium histolyticum. Three isolates belonging to Bacillus cereus, Bacillus anthracis, and Enterobacter cloacae are used as pure cultures, achieving HYs of 2.21, 1.10, and 1.97 molH₂/molglucose, respectively. Accordingly, the mixed culture inoculum subjected to thermal treatment at 100 °C for 30 min can deliver higher HYs than pure cultures.
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utilization of Pistia Stratiotes aquatic weed for fermentative biohydrogen electron equivalent balance stoichiometry and cost estimation
International Journal of Hydrogen Energy, 2018Co-Authors: Nonsikelelo Precios Mthethwa, Mahmoud Nasr, Sheena KumariAbstract:Abstract This study investigated the utilization of Pistia Stratiotes for biohydrogen production via a dark-fermentation process. The aquatic plant was subjected to acid-hydrolysis using H2SO4: 3.0% (v/v) for 40 min, resulting in sugar yield: 122.2 ± 5.2 mg/g. The optimum culture pH was 5.5, achieving hydrogen yield (HY): 2.46 ± 0.14 mol-H2/mol-glucose (3.51 ± 0.20 mg-H2/g-dry weight) at fermentation time 8 h, temperature 25 °C, and substrate-to-biomass (S/X) ratio 1.0 g-COD/g-VSS. The organic mass balance (92–96%) and electron-equivalent balance (92–98%) indicated the reliability of fermentation data. The dominant species included Planctomycetales, Verrucomicrobiales, Clostridiaceae, and Gammaproteobacteria. The phylogenetic analysis confirmed the abundance of hydrogen-producing bacteria such as Bacillus, Clostridium, and Enterobacter. The hydrogenase gene expression provided the highest activity at pH: 5.5 with a cell number 2.53 × 104 copies/ng-DNA compared to pH: 4.5 (6.95 × 103 copies/ng-DNA) and pH: 8.5 (7.77 × 103 copies/ng-DNA). The total cost of the fermentation system including the amortization cost of investment and operating cost was 0.08 $/kg-dry weight (22.8 $/kg-H2 produced).
Ayay Tongombol, Jackson David - One of the best experts on this subject based on the ideXlab platform.
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Capacidad remediadora de Lemna minor y Pistia Stratiotes en el tratamiento de aguas residuales de la localidad de Granja Porcón - Cajamarca
'Universidad Cesar Vallejo', 2019Co-Authors: Ayay Tongombol, Jackson DavidAbstract:La presente investigación se ha propuesto investigar mediante los análisis físicos, químicos y microbiológicos los niveles de contaminación de las aguas residuales de la Localidad de Granja Porcón, asimismo dar tratamiento a dichas aguas residuales a base de plantas acuáticas de Lemna minor y Pistia Stratiotes; ya que estas aguas residuales exceden los Límites Máximos Permisibles LMP. La Fito depuración de Lemna minor y Pistia Stratiotes en el tratamiento de las aguas residuales de la localidad Granja Porcón se dio durante 30 días, donde se analizó cada 10 días lo parámetros físico, químicos y microbiológicos. Los resultados obtenidos de los análisis del agua residual de la localidad granja Porcón exceden los LMP, asimismo exceden en la muestra 1 y 2 tanto para Lemna minor y Pistia Stratiotes, sin embargo en la muestra 3 se encuentra por debajo de lo LMP correspondiente a la planta acuática Lemna minor en los siguientes parámetros, Aceite y Grasas 8.4mg/L ,DBO 83.4mg/L , DQO174.4mg/L , Coliformes Termotolerantes 3900NMP/100ml , Solidos Suspendidos Totales 128.3ml/L, con respecto a Pistia Stratiotes en los siguientes parámetros en Aceite y Grasas 9.3mg/L, Coliformes Termotolerantes 6400NMP/100ml , Solidos Suspendidos Totales 133 ml/L se encuentran dentro de los parámetros, no obstante en los parámetros de DBO cuyo resultado es 109 mg/L , DQO cuyo valor es 222 mg/L , se encuentra por encima del estándar del LMP. Finalmente se obtuvo como resultado que la planta micrófita Lemna minor tiene mayor capacidad remediadora que Pistia Stratiotes en el tratamiento de agua residuales domésticas
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Capacidad remediadora de Lemna minor y Pistia Stratiotes en el tratamiento de aguas residuales de la localidad de Granja Porcón - Cajamarca
'Universidad Cesar Vallejo', 2019Co-Authors: Ayay Tongombol, Jackson DavidAbstract:TesisChiclayoEscuela Académico Profesional de Ingeniería AmbientalCalidad y Gestión de los Recursos NaturalesLa presente investigación se ha propuesto investigar mediante los análisis físicos, químicos y microbiológicos los niveles de contaminación de las aguas residuales de la Localidad de Granja Porcón, asimismo dar tratamiento a dichas aguas residuales a base de plantas acuáticas de Lemna minor y Pistia Stratiotes; ya que estas aguas residuales exceden los Límites Máximos Permisibles LMP. La Fito depuración de Lemna minor y Pistia Stratiotes en el tratamiento de las aguas residuales de la localidad Granja Porcón se dio durante 30 días, donde se analizó cada 10 días lo parámetros físico, químicos y microbiológicos. Los resultados obtenidos de los análisis del agua residual de la localidad granja Porcón exceden los LMP, asimismo exceden en la muestra 1 y 2 tanto para Lemna minor y Pistia Stratiotes, sin embargo en la muestra 3 se encuentra por debajo de lo LMP correspondiente a la planta acuática Lemna minor en los siguientes parámetros, Aceite y Grasas 8.4mg/L ,DBO 83.4mg/L , DQO174.4mg/L , Coliformes Termotolerantes 3900NMP/100ml , Solidos Suspendidos Totales 128.3ml/L, con respecto a Pistia Stratiotes en los siguientes parámetros en Aceite y Grasas 9.3mg/L, Coliformes Termotolerantes 6400NMP/100ml , Solidos Suspendidos Totales 133 ml/L se encuentran dentro de los parámetros, no obstante en los parámetros de DBO cuyo resultado es 109 mg/L , DQO cuyo valor es 222 mg/L , se encuentra por encima del estándar del LMP. Finalmente se obtuvo como resultado que la planta micrófita Lemna minor tiene mayor capacidad remediadora que Pistia Stratiotes en el tratamiento de agua residuales domésticas
M B Panholzer - One of the best experts on this subject based on the ideXlab platform.
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biogas production from the aquatic weed Pistia Pistia Stratiotes
Bioresource Technology, 1991Co-Authors: S A Abbasi, P. C. Nipaney, M B PanholzerAbstract:Abstract Pistia Stratiotes , an aquatic weed, was investigated as a substrate for biogas production in batch digestion. An inoculum was necessary to obtain biogas production from the weed. With Pistia only, production of carbon dioxide alone was high during the first five days of digestion but began to level off thereafter. With inoculated Pistia , a high rate of biogas production was sustained for nearly 10 days and the average methane content was 58–68%. The digesters charged with Pistia alone had significant concentrations of propionic, butyric, isobutyric, valeric, and isovaleric acids. These acids were not present in detectable concentrations, in the digesters running with inoculated Pistia , except during the first 4 days of the digestion when propionic acid was formed. When an inoculum was added to a ‘soured’ digester the performance of the latter improved dramatically.
Daniel Valadao Silva - One of the best experts on this subject based on the ideXlab platform.
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sensitivity of the macrophytes Pistia Stratiotes and eichhornia crassipes to hexazinone and dissipation of this pesticide in aquatic ecosystems
Ecotoxicology and Environmental Safety, 2019Co-Authors: Victor Hugo Vidal Ribeiro, Brenda Thais Barbalho Alencar, José Barbosa Dos Santos, Dayana Maria Teodoro Francino, Naiane Maria Correa Dos Santos, Vitor Antunes Martins Da Costa, Matheus De Freitas Souza, Daniel Valadao SilvaAbstract:Abstract Herbicide wastes from agriculture areas can contaminate water resources and affect non-target organisms. Since herbicides reach groundwater and rivers, these residues can damage the aquatic ecosystem. Hexazinone is an herbicide widely used in sugarcane cultivation and has a potential to contaminate water resources. Therefore, studies are necessary to know the possible damages of this herbicide on aquatic organisms, as well as the behavior of this pesticide in those systems. In this study, our objective was to evaluate the sensitivity of the macrophytes Pistia Stratiotes and Eichhornia crassipes to hexazinone, as well as the dissipation of these pesticides. The variables intoxication, fresh matter accumulation, and leaf anatomy were used to evaluate the sensitivity of the macrophytes to hexazinone. The hexazinone concentration in water was performed by HPLC-MS. Hexazinone concentrations equivalent to 111 and 333 μg L−1 were toxic to the macrophytes. Pistia Stratiotes produced less fresh matter production than Eichhornia crassipes when exposed to the hexazinone. The hexazinone application did not change the adaxial epidermic (EAD), abaxial epidermic (EAB), palisade parenchyma (PP), aerenchyma (AER) and leaf blade (LAF) of Pistia Stratiotes at any concentration tested. Concentrations equivalent to 333 μg L−1 changed the PP and LAF of Eichhornia crassipes. The presence of this herbicide in water negatively affects the fresh matter accumulation and leaf structure of the Pistia Stratiotes and Eichhornia crassipes, respectively. The presence of these macrophytes delayed the dissipation of hexazinone due to them impair other pathways of degradation of this herbicide in aquatic environments. The presence of this herbicide in water negatively affects the growth and development of the Pistia Stratiotes and Eichhornia crassipes.
