Removal of Steryl Glucosides in Biodiesel Using Diatomaceous Earth as Adsorbent

Yuangsawad, Ratanaporn; Khambung, Suttirat; Laungthaleongpong, Pattarin; Na-Ranong, Duangkamol

doi:10.18690/978-961-286-048-6.12

Cited by 3 publications

(3 citation statements)

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“…While Na Ranong in 2015 claim that magnesium silicate has a removal effectiveness ranging from 81.4% to 82.5 %, whereas bleaching earth has a little lower but still considerable SGs removal range from 48.6 % to 58.9 % [7]. Na Ranong also state another remarkable adsorbent is diatomaceous earth, which has a removal effectiveness of 70.4 % [22]. According to Widdyaningsih's study [10], nanocrystalline cellulose has a remarkable high SGs removal efficiency of 91.81%.…”

Section: Resultsmentioning

confidence: 99%

Silica Based Material as a Potential Adsorbent in Reducing Sterol Glucoside Level in Palm Oil Biodiesel

Abd Malek,

Maniam

2024

KEM

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In recent years, biodiesel has emerged as a popular alternative to fossil fuels due to its superior properties. However, the presence of bioactive compounds, known as sterol glucosides (SGs), in crop-based biodiesel has posed a challenge for producers, as they act as crystal seeds and can cause gel formation or precipitation in cold temperatures. This can lead to issues with the quality of biodiesel during storage or use in vehicle engines. To address this issue, a study was conducted to explore the use of silica-based materials as an adsorbent to reduce SGs concentration in palm oil biodiesel. Natural resources silica material with a size of less than 100 µm was used in the process. The results showed that the use of silica gel led to the removal of 63.09 % of SGs in palm-based biodiesel due to its high surface area (556 m2/g) and porosity (0.79 cm3/g). Fourier transform infrared spectroscopy (FTIR) analysis indicated that the silicate and hydroxyl groups on the adsorbent’s surface were responsible for SGs adsorption. Importantly, the quality of the biodiesel before and after the adsorption treatment met all the specifications of the EN 61214 standard. This research suggests that the use of silica-based materials could be a promising solution for reducing SGs concentration in crop-based biodiesel, and could potentially improve its overall quality.

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Section: Resultsmentioning

confidence: 99%

Silica Based Material as a Potential Adsorbent in Reducing Sterol Glucoside Level in Palm Oil Biodiesel

Abd Malek,

Maniam

2024

KEM

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“…For wastewater treatment, seashells including OSs have been investigated as an adsorbent for removing phosphorus [22] and heavy metals [23]. Park and Polprasert [24] reported the high applicability of OSs as a wetland media for the removal of phosphorus as Ca-P precipitation from swine wastewater (98.3% removal).…”

Section: Introductionmentioning

confidence: 99%

Removal of Heavy Metals from Acid Mine Drainage with Lab-Scale Constructed Wetlands Filled with Oyster Shells

Nguyen

Soda

Horiuchi

2022

Water

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The present study investigated the applicability of constructed wetlands (CWs) filled with oyster shells (OSs) for removing heavy metals from acid mine drainage (AMD). Lab-scale CWs consisted of columns (ID 12.5 cm, H 50 cm) packed with OSs or limestone, which were left unplanted or planted with cattails. Synthetic and real AMD containing 7.3 mg/L of Zn, 38.0 mg/L of Fe, and other minerals (pH = 4.0) were fed to the CWs (1 L/column) under a hydraulic retention time of 7 days in a sequencing batch mode. The effluent pH values of the CWs reached 6.9–8.3. Results show that OSs with high CaCO3 contents had higher neutralizing capability for AMD than limestone had. During 7 months of operation, all CWs were highly effective for removing Zn (88.6–99.2%); Fe (98.7–99.7%); and Cd, Cu, Pb, As, and Mn (48.2–98.9%) from both real and synthetic AMD. The mass balance in the CWs indicated accumulation in OSs or limestone as a main pathway for removing heavy metals, representing 44.8–99.3% of all metals, followed by biomass (8.8–29.9%) in the planted CWs. Other processes examined for this study only played a minor role in removing heavy metals. The higher metal treatment performance of OS CWs demonstrated the value of this aquaculture byproduct as a CW substrate.

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“…CaO mulai terbentuk pada suhu >500ºC dan pada suhu ≥900ºC CaO yang terbentuk akan lebih aktif sehingga jika digunakan sebagai katalis akan lebih optimal (Nordin, Hamzah, Hashim, Kasim, & Abdullah, 2015). Beberapa penelitian yang menggunakan CaO sebagai katalis telah dilakukan (Badrul et al, 2014;Lesbani, Tamba, & Mohadi, 2013;Mohadi, Anggraini, Riyanti, & Lesbani, 2016;Qoniah, 2014;Rodríguez-Reinoso, 1998;Yuangsawad & Na-ranong, 2011;Yulianti, 2011 (Stanmore, 2015) Nilai rendemen atau persentase keefektifan pembentukan CaO melalui proses kalsinasi tersaji pada Grafik 1.…”

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Pengaruh Suhu Kalsinasi Terhadap Nilai Rendemen CaO Cangkang Tiram (Crassostrea Gigas)

Handayani

Zuhrayani

Putri

et al. 2020

TILAPIA

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Oyster shell contained more than 60% of calcium carbonate.it can be used as natural calcium source. Calcium oxide (CaO) can be converted from natural calcium carbonate (CaCO3) at high temperature with decomposition reaction. The purpose of this research was to isolating calcium oxide and to know the yield of CaCO3 decomposition. Calcined samples oyster shells flour is at 500ºC, 700ºC, 900°C and 1100ºC for 2 hours. The sequential data yield of CaO obtained was 96.65%; 96.57%; 60.41% and 54.67%.

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Removal of Steryl Glucosides in Biodiesel Using Diatomaceous Earth as Adsorbent

Cited by 3 publications

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Silica Based Material as a Potential Adsorbent in Reducing Sterol Glucoside Level in Palm Oil Biodiesel

Silica Based Material as a Potential Adsorbent in Reducing Sterol Glucoside Level in Palm Oil Biodiesel

Removal of Heavy Metals from Acid Mine Drainage with Lab-Scale Constructed Wetlands Filled with Oyster Shells

Pengaruh Suhu Kalsinasi Terhadap Nilai Rendemen CaO Cangkang Tiram (Crassostrea Gigas)

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