Effective Treatment of Industrial Wastewater Contaminated with Mn and Pb using Mesoporous Silica from Yogyakarta Beach

Salamah, Siti; Suhendra, Suhendra

doi:10.26555/chemica.v8i2.21952

Cited by 3 publications

(3 citation statements)

References 21 publications

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“…Although the SFPW adsorbent with 2 M acid activated was not shown the peak of symmetric stretching vibration of Si-O-Si at 793 and 798 cm -1 , the peak of asymmetric stretching vibration of Si-O-Si appears in the wave number region of 1106 cm -1 . These facts indicate that the three adsorbents contain silica (SiO2) [18], [9], [20].…”

Section: Characterization Of the Snake Fruit Peel Waste Adsorbent Usi...mentioning

confidence: 80%

“…The high composition of Cl may be caused by the HCl acid activation process during SFPW adsorbent production. The chlorine content in the SFPW adsorbent is much higher than that of silica sand (40%) [18]. The excessively high concentration of HCl also leads to increased viscosity, which binds with NaOH, reducing the ion activity in the solution.…”

Section: Type and Composition Of Elementsmentioning

confidence: 98%

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Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

Salamah,

Satar

2024

IJAAS

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Silver crafts wastewater (SCW) typically contains environmentally harmful heavy metals, including Ag, Cu, Mn, and Cr, necessitating treatment before disposal. This study explores a promising solution using silica (SiO2) adsorbents derived from snake fruit peel through acidic activation with HCl concentrations of 2, 4, and 6 M. Qualitative analysis of the adsorbent involved Fourier-transform infrared spectrometer (FTIR) and x-ray fluorescence (XRF) techniques. XRF analysis revealed major compositions of Si (26%) and Cl (71.46%), with minor elements such as Ca (0.91%), P (0.42%), K (0.37%), Fe (0.12%), and others. FTIR analysis indicated the presence of siloxane (Si-O-Si) and silanol (Si-OH) on the adsorbent. The SiO2 adsorbent demonstrated effectiveness in removing heavy metals (Ag, Cu, Mn, and Cr) from SCW, achieving removal percentages of approximately 16.96%, 24.38%, 19.34%, and 9.82%, respectively. This research contributes to the development of an environmentally friendly approach for SCW treatment using silica adsorbents derived from agricultural waste.

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Section: Characterization Of the Snake Fruit Peel Waste Adsorbent Usi...mentioning

confidence: 80%

Section: Type and Composition Of Elementsmentioning

confidence: 98%

Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

Salamah,

Satar

2024

IJAAS

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“…Silika merupakan material berpori. Menurut Salamah & Suhendra (2022), silika dari pasir mempunyai luas permukaan 54,43 m 2 /g. Untuk meningkatkan luas permukaannya dimodifikasi menjadi material mesopori, yang memiliki karaketristik lebih baik dari silika.…”

Section: Pendahuluanunclassified

MODIFIKASI pH SILIKA MESOPORI DARI PASIR PANTAI SEBAGAI ADSORBEN TIMBAL (Pb) DAN TEMBAGA (Cu) DALAM LIMBAH PERCETAKAN

Salamah¹,

Rahayu²

2023

JCHEM

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ABSTRAK Limbah industri umumnya mengandung logam Pb, Zn, Cr, Mn, dan Cu. Logam-logam ini sangat berbahaya sehingga perlu dilakukan pengolahan limbah, seperti menggunakan adsorben yang mempunyai luas permukaan besar, contohnya silika mesopori (SM). SM dapat dibuat dari silika pasir pantai. Pasir diekstraksi dengan larutan HCl untuk mendapatkan silika, dilanjutkan dengan refluks menggunakan NaOH. Silika diproses menjadi SM dengan templet Dodesil Amina (DDA). Proses pembentukan SM dalam kondisi asam dilakukan dengan variabel pH 3, pH 4 dan pH 5. SM yang terbentuk digunakan untuk adsorpsi limbah percetakan. Hasilnya menunjukkan karakter SM optimum didapatkan pada pH 4 dengan luas permukaan 286,46 m2/g, volume pori total 10,9 cm3/g dan diameter pori 15,21 nm. Limbah percetakan sebelum adsorpsi mengandung logam timbal (Pb) <0,009 mg/L, tembaga (Cu) 0,5589 mg/L, Biochemical Oxygen Demand (BOD) sebesar 1740 dan Chemical Oxygen Demand (COD) sebesar 6534. Adsorpsi limbah menggunakan SM optimum dilakukan pada waktu kontak 120 menit dengan kecepatan pengadukan 180 rpm. Kandungan Cu dalam filtrat setelah proses adsorpsi dengan kecepatan putaran pengaduk 180 rpm adalah sebesar 0,05 mg/L. Level BOD pada sampel setelah adsorpsi dengan waktu 120 menit terjadi penurunan 20 %, sedangkan level COD terjadi penurunan 50 %. Level BOD dan COD setelah adsorpsi masih relatif tinggi, yaitu masing-masing sebesar 1260 dan 3059,5. Hasil analisis dengan SEM-EDX Mapping pada adsorben SM setelah adsopsi menunjukkan bahwa pada adsorben masih terdapat logam Pb 1,17 %b/b dan Cu 1,48 %b/b. Hasil ini menunjukkan bahwa silika mesopori potensial dan dapat digunakan sebagai adsorben pada pengolahan limbah industri yang mengandung logam Pb dan Cu. Kata kunci: adsorpsi limbah, modifikasi pH, silika mesopori, tembaga, timbal. ABSTRACT Industrial waste generally contains Pb, Zn, Cr, Mn, and Cu metals. These metals are hazardous, therefore, a waste treatment needs to be carried out, such as by using a large surface area of adsorbent, for example, mesoporous silica (MS). MS can be prepared from beach sand silica. The sand was extracted using an HCl solution to obtain the silica, followed by refluxing it using NaOH. The silica was then processed into MS using a Dodecyl Amine (DDA) template. The process of forming MS in an acidic condition was done with the variables of pH 3, pH 4, and pH 5. The MS created was then used for the adsorption of printing waste. The results showed that the optimum MS character was obtained at pH 4 with a surface area of ??286.46 m2/g, a total pore volume of 10.9 cm3/g, and a pore diameter of 15.21 nm. The printing waste before the adsorption contained lead (Pb) of <0.009 mg/L, copper (Cu) of 0.5589 mg/L, BOD of 1740, and COD of 6534. The adsorption of waste by using the optimum MS was done at a contact time of 120 minutes with a stirring speed of 180 rpm. The content of Cu in the filtrate after the adsorption using a condition of the stirrer rotation speed of 180 rpm was 0.05 mg/L. The BOD level in the sample after the adsorption with a contact time of 120 minutes decreased by 20%, while the COD level reduced by 50%. The level of BOD and COD after adsorption was still relatively high, which was 1260 and 3059.5, respectively. The results of SEM-EDX Mapping analysis on the MS adsorbent after the adsorption contained 1.17 %w/w of Pb and 1.48 %w/w of Cu. These results showed that the silica mesopore was potentially used as an adsorbent for treating the printing waste containing Pb and Cu metals. Keywords: cuprum, lead, Mesoporous Silica (MS), pH modification, waste adsorption.

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Use of silica synthetic adsorbent from beach sand on the adsorption of metal ion Pb and Cu in printing waste

Salamah,

Widyaningsih,

Adelia

2024

AIP Conference Proceedings

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Effective Treatment of Industrial Wastewater Contaminated with Mn and Pb using Mesoporous Silica from Yogyakarta Beach

Abstract: This is an open access article under the CC-BY-SA license.

Cited by 3 publications

References 21 publications

Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

MODIFIKASI pH SILIKA MESOPORI DARI PASIR PANTAI SEBAGAI ADSORBEN TIMBAL (Pb) DAN TEMBAGA (Cu) DALAM LIMBAH PERCETAKAN

Use of silica synthetic adsorbent from beach sand on the adsorption of metal ion Pb and Cu in printing waste

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