Potential of Agro Waste-Derived Adsorbent Material for Colour Removal

Abstract

The potential of Empty Fruit Bunch obtained from palm oil tree as a low-cost adsorbent is a sustainable approach in wastewater treatment. The objective this study to investigate the capability of EFB for removal colour from natural rubber wastewater as well as the influence of adsorbent dosage, pH, shaking speed and contact time. The results of the analysis show that all selected factors exhibit significant effect on removal of colour. Maximum removal (87.1%) for colour was achieved at 3.5 g of adsorbent dosage, pH 7, 150 rpm of shaking speed, 120 min of contact time. The Langmuir isotherm (R2= 0.9913) described colour adsorption slightly better than the Freundlich isotherm (R2= 0.9805), suggesting a monolayer adsorption behavior of the adsorption processes

Strategi Peningkatan Kinerja Manajemen Sekolah Pada Smak Swasta Frateran Ndoa Ende

“…SMAK Frateran Ndao memiliki 640 siswa yang terbagi dalam 21 rombongan belajar dengan jumlah guru sebanyak 50 0rang dan jumlah tenaga kependidikan sebanyak 16 orang (http://dapo.kemendikbud.go.id / data pokok SMAK Frateran Ndao 2020) Penilaian kinerja manajemen sekolah dianalisis menggunakan pendekatan balanced scorecard, yang merupakan sistem perencanaan manajemen dan penilaian kinerja yang dikembangkan oleh Kaplan dan Norton pada tahun 1992 dalam jurnal Harvard Review yang berjudul Balanced scorecard measure that drive performance. Balanced scorecard tidak hanya menilai kinerja identitas dari aspek keuangan saja, namun dengan menerjemahkan visi dan strategi entitas kedalam berbagai tujuan dan ukuran yang tersusun dalam empat perspektif yaitu perspektif keuangan, perspektif pelanggan, perspektif proses bisnis internal, serta perspektif pertumbuhan dan pembelajaran (Daud et al, 2018) Balanced scorecard menilai kinerja suatu entitas dari aspek keuangan, pelanggan, bisnis internal, pertumbuhan dan pembelajaran sehingga dapat memberikan pandangan yang seimbang dalam menilai kinerja manajemen suatu organisasi, antara lain (Soputro et al, 2016) Berdasarkan standar penilaian diatas, pengkuran kinerja SMAK Frateran Ndao menggunakan balanced scorecard berada pada posisi sangat baik dengan jumlah skor keseluruhan sebanyak 75 (Tujuh puluh lima). Hasil temuan penelitian, kemudian dilakukan kajian faktor terhadap faktor lingkungan internal sekolah sehingga ditemukan adanya kekuatan dan kelemahan yang dimiliki serta kajian terhadap faktor lingkungan eksternal sekolah sehingga akan ditemukan adanya peluang dan ancaman yang dihadapi dengan menggunakan analisis strenghts,weaknesses,opportunities,threaths (SWOT) dalam merumuskan strategi peningkattan kinerja sekolah.…”

Optimization of Batch Conditions for COD and Ammonia Nitrogen Removal Using cockle shells Through Response Surface Methodology

“…The experiments were carried out varying cockle shell dosage and pH. The samples were taken from the flasks at predetermined time intervals and analyzed for COD and NH 3 -N content [21,22]. The COD and NH 3 -N were assessed by the closed reflux and Nessler Method respectively using atomic adsorption spectrophotometer (Model HACH DR6000).…”

Optimization of culture conditions for improved green biodecolourization of methylene blue by Rhodococcus pyridinivorans strain UCC 0003

“…Qualities such as high competency, simplicity, and low cost make adsorption as one of the most strategic methods for dye removal from wastewaters (Chandane and Singh, 2016 ; Beakou et al, 2017 ; Surip et al, 2020 ). Among the adsorbents, the abundance of natural adsorbents, namely agricultural wastes, is exploited for methylene blue removal because of their environmental friendliness, low cost, and sustainability (Daud et al, 2018 ; Stavrinou et al, 2018 ; Kadhom et al, 2020 ). The agricultural sector in Malaysia is thriving, especially in the area of fruit commodity production (Mansor et al, 2018 ; Baharin et al, 2020 ).…”

“…Consequently, this results in voluminous fruit waste (0.310 million tonnes of sugarcane bagasse, 0.239 million tonnes of coconut waste, 803 938 tonnes of banana waste, and 275 732 tonnes of pineapple waste in 2015), thus presenting an opportunity for it to be used as an effective adsorbent (Mansor et al, 2018 ; Baharin et al, 2020 ). These wastes contain functional groups such as hydroxy, phenols and carboxyl groups, which enable pollutants to attach to the agricultural wastes (Daud et al, 2018 ). Biological methods may, however, present as a more appropriate approach for decolorization of methylene blue, wherein the colorant is converted into byproducts (Katheresan et al, 2018 ; Joshi et al, 2020 ).…”