Bioadsorben Salinitas Sederhana berbasis Limbah Lingkungan

Junaidi, Eka; Siahaan, Jeckson; Hakim, Aliefman

doi:10.29303/jpm.v15i2.1625

Cited by 3 publications

(5 citation statements)

References 8 publications

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“…Based on the calculation results, it was found that the ability of rice husk ash as an adsorbent in reducing phosphate levels in household wastewater was 52.54%. This result is smaller than when the rice husk ash was used as an adsorbent to reduce the NaCl content, which reached 83.75% [15].…”

Section: The Concentration Of Phosphate In the Sample Before And Afte...mentioning

confidence: 75%

“…Rice husk ash is one of the combustion wastes or ash from plants which usually comes from rice husks, the rest of the brick industry burning, and so on. Rice husk ash has a chemical composition of 53.09% SiO2, 24.80% Al2O3, and 8.01% Fe2O3 [15]. The ability of rice husk ash as an adsorbent has been widely studied, for example, reducing levels of congo red, removal of HCN in Gadung tubers, Cr +6 ions, adsorbent Cd ions and Cr ions, decreased industrial wastewater dyestuffs, Pb metal, decreased NaCl levels [16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

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Effectiveness of rub ash waste as adsorbent household waste water

et al. 2022

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This study aims to determine the effectiveness of rice husk ash as an adsorbent to reduce phosphate levels in household wastewater and inexpensively. This research is an experimental laboratory research using the spectrophotometric method. Research data can be obtained through a series of experimental stages, including 1). Preparation of phosphate standard solution curve, 2). Determination of phosphate content before and after passing the adsorbent for the analyzed sample, 3). Determine the effectiveness of adsorbents in reducing phosphate levels in household wastewater. The effectiveness of rice husk ash as an adsorbent can be determined by comparing the phosphate levels before and after household wastewater is passed to the adsorbent. The magnitude of the reduction in phosphate content indicates the amount of phosphate adsorbed on the ash. Based on the experimental results, it is known that phosphate can be measured using a UV VIS Reign 1900 spectrometer at a wavelength of 693 nm. The standard phosphate solution curve was made based on the absorbance measurement of the series of standard phosphate solutions (0, 2, 4, 6, 8, and 10 ppm) used. In this study, the curve of the standard phosphate solution has the line equation: Y = 0.1723 X + 0.3823 with a correlation coefficient of 0.8633. In the equation of the line, Y indicates the absorbance value of the sample read on the spectrometer, while X indicates the concentration value of the substance being analyzed. Based on the equation of the curve line of the standard phosphate solution, it is used as a reference in determining the phosphate content of the sample by interpolating the absorbance that is read on the spectrometer owned by the sample and then determining the concentration value. Based on the calculation results, it was found that the ability to rice husk ash as an adsorbent to reduce phosphate levels in household wastewater was, on average, 52.54%. The ability of rice husk ash is still relatively small compared to the ability of rice husk ash as an adsorbent on heavy metals. In addition, phosphorus (P) as a constituent of phosphate has a smaller size (P diameter = 1.00) when compared to silica (diameter = 1.10), which is the largest composition in the ash. The difference in the size of the radius of phosphorus is smaller than that of silica. It is suspected as one of the causes of the phosphate content retained in the rice husk ash as an adsorbent is not too large. However, the percentage value of rice husk ash to reduce phosphate levels is still considered quite good as an adsorbent if the goal is to reduce phosphate levels from household wastewater that is discharged directly into the environment.

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Section: The Concentration Of Phosphate In the Sample Before And Afte...mentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Effectiveness of rub ash waste as adsorbent household waste water

et al. 2022

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“…With the reduced value of turbidity due to organic compounds, the BOD value will also decrease [10]. In addition, the faster the stirring will affect the reduced efficiency of BOD reduction which causes the BOD value to increase (Junaidi et al, 2020).…”

Section: Results Of Bod and Cod Analysismentioning

confidence: 99%

“…After settling in the form of floc, the amount of oxygen in the water will increase again. The decrease in the number of suspended particles in the liquid waste increases so that the COD value decreases (Junaidi et al, 2020).…”

Section: Efficiency Of Chitosan Snail Shells As Biocoagulants In Removal Of Cod (Chemical Oxygen Demand)mentioning

confidence: 99%

The Influence of Concentration Chitosan of A Shell Snail to Lower Levels of BOD and COD on Waste Laundry

Kasmudin

Fitria

Artiningsih

2022

J. Appl. Sci. Eng. Technol. Educ.

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Disposal of laundry waste directly in the river is the cause of high river pollution. Laundry wastewater resulted in an increase in BOD and COD parameters so that it had a negative impact on ecosystem life. The coagulation process using chemicals can reduce BOD and COD parameters in wastewater but have negative effects on health. Chitosan from snail shells can be used as an alternative coagulant that is environmentally friendly because it contains about 70% - 80% chitin. This study aims to synthesize chitosan biocoagulants from snail shells and to test the effectiveness of snail shell chitosan in the treatment of laundry wastewater. Fourier Transform Infra-Red (FTIR) analysis showed that the deacetylation rate of chitosan obtained was 78.06%. Coagulation was carried out on wastewater using variable concentrations and stirring speed. The results showed that the optimum dose of snail shell chitosan biocoagulant was at a concentration of 0.4%. At this dose, the coagulant can bind to the most optimal contaminants so that it can reduce the BOD and COD values in laundry waste and the Fast Stirring Speed of 100 rpm is the optimum stirring speed because large speeds will produce excessive shear forces and prevent the desired floc arrangement.

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“…Dalam pengolahan data pada pengujian validitas penguji menggunaka tingkat signifikansi sebesar 10%, maka derajat kebebasan (df) = n-2, atau pada penelitian ini yaitu df = 100 -2 = 98. Maka nilai r tabel dapat dilihat pada tabel r yaitu df = 98 dengan r tabel = 0.1654 [20]. Seperti yang terlihat dari hasil perhitungan pada tabel 3, hasil yang diperoleh yaitu tidak adanya atribut yang perlu dibuang karena r hitung ≥ r tabel.…”

Section: Uji Validitas Dan Uji Relibilitas Dataunclassified

Analisis Kepuasan Pengguna Sistem Informasi E-Campus Menggunakan Metode E-Servqual Dan Model Kano

Nurhadi

Hamzah

Ahsyar

et al. 2022

bits

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This study aims to identify the dimensions and service attributes that need to be improved, as well as improvements related to the quality of services provided by the e-campus system to students at UIN Mahmud Yunus Batusangkar. It also aims to identify the quality of services provided by the e-campus system to students. in order to provide advice or consideration to improve the quality of the e-campus system to the campus or developer, which in turn will produce a solution to improve the quality of the e-campus system for user satisfaction. The procedures used include 5 stages are planning, gathering information processing information analysis and the latest reporting review. The research results created calculations using e-servqual procedures of 0.92 ≤ 1, showing that the quality of the services provided could be said to be unable to fulfill students' expectations. If the level of performance is met, it will bring about a very large increase in user satisfaction. But if not fulfilled, it will reduce the level of satisfaction. Whereas the canoe model gets eight attributes included in the must-be category, eight one-dimensional attributes and six attractive attributes. The ranking level obtained is a source of attributes that are prioritized to be improved. Every attribute that has a very large negative value will also be less effective in achieving user satisfaction

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Bioadsorben Salinitas Sederhana berbasis Limbah Lingkungan

Cited by 3 publications

References 8 publications

Effectiveness of rub ash waste as adsorbent household waste water

Effectiveness of rub ash waste as adsorbent household waste water

The Influence of Concentration Chitosan of A Shell Snail to Lower Levels of BOD and COD on Waste Laundry

Analisis Kepuasan Pengguna Sistem Informasi E-Campus Menggunakan Metode E-Servqual Dan Model Kano

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