PENGARUH WAKTU FERMENTASI TERHADAP VOLUME GAS BIO DAN PENYISIHAN COD DENGAN METODE PERLAKUANAWAL MENGGUNAKAN KALIUMHIDROKSIDA(KOH) PADA ECENG GONDOK (Eichhornia crassipes)

The purpose of this study was to determine the effect of alkali pre-treatment methods on the quality and quantity of biogas. The study was doneby fermentation process the water hyacinth with KOH in a concentration of 6,7 M; 4 M;3 M; and 2,95 (M) with water in ratio hyacinth: water 70:30; 50:50; 30:70 and 100:0 (v/v) mixed with cow dung starter in an anaerobic digester batch system of 2,5 L capacity. In this study the highest biogas production at KOH concentration 4 M was in ratio of 50:50 (v/v)with yield biogas volume 449 mL and 86,52% of COD revomal, 92,42% of TSS removal. The lowest biogas production at KOH concentration 6,7 M was in ratio of 70:30 (v/v) with yield biogas volume 132 mL and 86,55% of COD removal and 88,65%of TSS removal.

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PENGARUH WAKTU FERMENTASI DAN KOMPOSISI LIMBAH ECENG GONDOK (Eichhornia crassipes) UNTUK MENGHASILKAN GAS BIO DENGAN METODE HIDROLISA BASA MENGGUNAKAN NATRIUM HIDROKSIDA (NaOH)

Jurnal Teknik Kimia USU ◽

10.32734/jtk.v6i1.1562 ◽

2017 ◽

Vol 6 (1) ◽

pp. 29-35

Author(s):

Setiaty Pandia ◽

Pri Hartini

Keyword(s):

Water Hyacinth ◽

Eichhornia Crassipes ◽

Fermentation Process ◽

Biogas Production ◽

Total Suspended Solid ◽

Suspended Solid ◽

Anaerobic Digester ◽

Alkali Pretreatment ◽

Batch System ◽

Production Concentration

Water hyacinth (Eichhornia crassipes) is a plant that become aquatic waste and its existence has not yet widelyused. The content of cellulose, hemicellulose, and lignin inside it can be used into biogas through fermentation process.The purpose of this research was to determine the effect of alkali pretreatment methods on the yield biogas volume and Total Suspended Solid (TSS) revomal percentage. The study was did by fermentation process the water hyacinth with NaOH concentration of 2,86; 3;4; and 6,67 (M) with water in ratio hyacinth:water 70:30; 50:50; 30:70 and 100:0 (v/v) mixed with cow dug starter in an anaerobic digester batch system of 2,5 L capacity. In this study the highest biogas production at NaOH concentration 6,67 M was in ratio of 70:30 (v/v) with yield biogas volume 506 mL and TSS revomal percentage of 93,23%. Minimum value of gasbio production concentration of NaOH 3M withwater hyacinth:water ratio 30:70 (v/v) generate yield biogas volume 158 mL and TSS revomal percentage of 81,48%.

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The Utilization of Water Hyacinth for Biogas Production in a Plug Flow Anaerobic Digester

International Journal of Renewable Energy Development ◽

10.14710/ijred.2021.21843 ◽

2020 ◽

Vol 10 (1) ◽

pp. 27-35

Author(s):

Soeprijanto Soeprijanto ◽

I Dewa Ayu Agung Warmadewanthi ◽

Melania Suweni Muntini ◽

Arino Anzip

Keyword(s):

Water Hyacinth ◽

Eichhornia Crassipes ◽

Biogas Production ◽

Plug Flow ◽

Anaerobic Digester ◽

Yield Potential ◽

Lag Phase ◽

Cow Dung ◽

Biogas Yield ◽

Volatile Solids

Water hyacinth (Eichhornia crassipes) causes ecological and economic problems because it grows very fast and quickly consumes nutrients and oxygen in water bodies, affecting both the flora and fauna; besides, it can form blockages in the waterways, hindering fishing and boat use. However, this plant contains bioactive compounds that can be used to produce biofuels. This study investigated the effect of various substrates as feedstock for biogas production. A 125-l plug-flow anaerobic digester was utilized and the hydraulic retention time was 14 days; cow dung was inoculated into water hyacinth at a 2:1 mass ratio over 7 days. The maximum biogas yield, achieved using a mixture of natural water hyacinth and water (NWH-W), was 0.398 l/g volatile solids (VS). The cow dung/water (CD-W), hydrothermally pretreated water hyacinth/digestate, and hydrothermally pretreated water hyacinth/water (TWH-W) mixtures reached biogas yields of 0.239, 0.2198, and 0.115 l/g VS, respectively. The NWH-W composition was 70.57% CH4, 12.26% CO2, 1.32% H2S, and 0.65% NH3. The modified Gompertz kinetic model provided data satisfactorily compatible with the experimental one to determine the biogas production from various substrates. TWH-W and NWH-W achieved, respectively, the shortest and (6.561 days) and the longest (7.281 days) lag phase, the lowest (0.133 (l/g VS)/day) and the highest (0.446 (l/g VS)/day) biogas production rate, and the maximum and (15.719 l/g VS) and minimum (4.454 l/g VS) biogas yield potential.

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Biogas production from co-digestion of water hyacinth, banana peel and water spinach wastes using a horizontal anaerobic digester

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/649/1/012022 ◽

2021 ◽

Vol 649 (1) ◽

pp. 012022

Author(s):

S Soeprijanto ◽

D H Prajitno ◽

B Setiawan ◽

W Maghfiro ◽

R Rohmawati

Keyword(s):

Water Hyacinth ◽

Biogas Production ◽

Anaerobic Digester ◽

Banana Peel ◽

Water Spinach

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State of the Art Research on Sustainable Use of Water Hyacinth: A Bibliometric and Text Mining Analysis

Informatics ◽

10.3390/informatics8020038 ◽

2021 ◽

Vol 8 (2) ◽

pp. 38

Author(s):

Aman Basu ◽

Amit Kumar Hazra ◽

Shibani Chaudhury ◽

Andrew B. Ross ◽

Srinivasan Balachandran

Keyword(s):

Water Hyacinth ◽

Eichhornia Crassipes ◽

Biogas Production ◽

Sustainable Use ◽

The United States ◽

Pollutant Removal ◽

Aquatic Weed ◽

Steady Growth ◽

Art Research ◽

Negative Sentiment

This study aims to present a systematic data-driven bibliometric analysis of the water hyacinth (Eichhornia crassipes) infestation problem around the globe. As many solutions are being proposed in academia for its management, mitigation, and utilization, it requires investigation through a systematic scrutinizing lens. In this study, literature records from 1977 to June 2020 concerning research on water hyacinth are taken from Scopus for text analysis. Trends in the publication of different article types, dynamics of publication, clustering, correlation, and co-authoring patterns between different countries are observed. The cluster analysis indicated four clusters viz. (i) ecological works related to species, (ii) pollutant removal process and methods, (iii) utilization of biofuels for biogas production, and (iv) modelling works. It is clear from the networking analysis that most of the publications regarding water hyacinth are from India, followed by China and the United States. Sentiment analysis with the AFINN lexicon showed that the negative sentiment towards the aquatic weed has intensified over time. An exploratory analysis was performed using a bigram network plot, depicting and outlining different important domains of water hyacinth research. Water hyacinth research has passed the pioneering phase and is now at the end of a steady growth phase or at the beginning of an acceleration phase. In this article, an overview is given for the entirety of water hyacinth research, with an indication of future trends and possibilities.

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Effect of Hydraulic Retention Time on Biogas Production from Cow Dung in A Semi Continuous Anaerobic Digester

International Journal of Renewable Energy Development ◽

10.14710/ijred.7.2.93-100 ◽

2018 ◽

Vol 7 (2) ◽

pp. 93-100 ◽

Cited By ~ 7

Author(s):

Agus Haryanto ◽

Sugeng Triyono ◽

Nugroho Hargo Wicaksono

Keyword(s):

Retention Time ◽

Hydraulic Retention Time ◽

Loading Rate ◽

Biogas Production ◽

Stable Condition ◽

Anaerobic Digester ◽

Organic Loading Rate ◽

Cow Dung ◽

Biogas Yield ◽

Average Analysis

The efficiency of biogas production in semi-continuous anaerobic digester is influenced by several factors, among other is loading rate. This research aimed at determining the effect of hydraulic retention time (HRT) on the biogas yield. Experiment was conducted using lab scale self-designed anaerobic digester of 36-L capacity with substrate of a mixture of fresh cow dung and water at a ratio of 1:1. Experiment was run with substrate initial amount of 25 L and five treatment variations of HRT, namely 1.31 gVS/L/d (P1), 2.47 gVS/L/d (P2), 3.82 gVS/L/d (P3), 5.35 gVS/L/d (P4) and 6.67 gVS/L/d (P5). Digester performance including pH, temperature, and biogas yield was measured every day. After stable condition was achieved, biogas composition was analyzed using a gas chromatograph. A 10-day moving average analysis of biogas production was performed to compare biogas yield of each treatment. Results showed that digesters run quite well with average pH of 6.8-7.0 and average daily temperature 28.7-29.1. The best biogas productivity (77.32 L/kg VSremoval) was found in P1 treatment (organic loading rate of 1.31 g/L/d) with biogas yield of 7.23 L/d. With methane content of 57.23% treatment P1 also produce the highest methane yield. Biogas production showed a stable rate after the day of 44. Modified Gompertz kinetic equation is suitable to model daily biogas yield as a function of digestion time.Article History: Received March 24th 2018; Received in revised form June 2nd 2018; Accepted June 16th 2018; Available onlineHow to Cite This Article: Haryanto, A., Triyono, S., and Wicaksono, N.H. (2018) Effect of Loading Rate on Biogas Production from Cow Dung in A Semi Continuous Anaerobic Digester. Int. Journal of Renewable Energy Development, 7(2), 93-100.https://doi.org/10.14710/ijred.7.2.93-100

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Suitability of Macrophytes for Wastewater Treatment and Biogas Generation

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.b1005.1292s219 ◽

2019 ◽

Vol 9 (2S2) ◽

pp. 16-18

Keyword(s):

Wastewater Treatment ◽

Water Hyacinth ◽

Aquatic Macrophytes ◽

Aquatic Macrophyte ◽

Biogas Production ◽

Oxygen Demand ◽

Cow Dung ◽

Water Lettuce ◽

Before And After ◽

Almost All

In this paper three sustainable approaches are made in waste management option. Firstly primary treated domestic sewage is treated by aquatic macrophytes using duckweed, water hyacinth and water lettuce. Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solids (TSS), Total Dissolved Solids (TDS), Phosphate, Nitrates are tested before and after. Result indicates in terms of water quality, almost all three plants shows same removal efficiencies. BOD and TSS removal efficiency is attained more than 95%. COD and TDS removal is reached upto 50% for almost all plants. Secondly the used aquatic macrophytes for wastewater treatment is again used for generation of biogas (water lettuce unit, duckweed unit, water lettuce unit). In addition to three aquatic macrophytes, sludge is collected from aquatic macrophyte unit for generation of biogas. Comparison is made with conventional cow dung biogas unit. Result indicates water lettuce and duckweed produce biogas at earlier stage itself and water hyacinth takes some time for starting of biogas production. This may be due to the structure and texture causes some time for decomposition. Sludge gives maximum biogas generation among all experimental setup. Also in this study cow dung did not give biogas more may be due to poor blend ratio of cow dung with water is one of the reason.

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