Informatics Publishing Limited

Zawawi Daud ¹, Mahmoud Hijab Abubakar ¹, Aeslina Abdul Kadir ¹, AbAziz Abdul Latiff ¹, Halizah Awang ², Azhar Abdul Halim ³, Aminaton Marto ⁴

Affiliations
1 Team of Research in Integrated Solid Waste Management (TRISM), Faculty of Civil and Environment Engineering, UniversitiTun Hussein Onn Malaysia, Johor, MY
2 Faculty of Technical and Vocational Education, Universiti Tun Hussein Onn Malaysia, Johor, MY
3 School of Environmental and Natural Resources Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Selangor, MY
4 Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor, MY

Abstract

Background/Objectives: Landfills generate leachate having an elevated concentration of contaminants and hazardous to health and the ecosystem. Feldspar and zeolite mixture was investigated for minimizing COD and ammonia from the leachate. Methods/Statistical Analysis: All adsorbent media were sieved to a particle size between 2.00 and 3.35 mm. The optimum shaking speed, mixing ratio, and pH were determined. Raw leachate Sample used in the study was collected from the influent of the detention pond at the SimpangRenggam Municipal landfill in Johor (Malaysia). Findings: Results of the leachate characteristics indicated a non-biodegradable leachate with a high concentration of COD (1763 mg/L), ammonia nitrogen (573 mg/L) and BOD5/COD ratio (0.09). The optimum condition for shaking speed was 150 rpm, the optimum mix ratio of zeolite and feldspar was 20:20, and the optimum pH was 6–6.5. Applications/Improvements: The mixed media produced encouraging results for leachate treatment. It will significantly be applicable in reducing zeolite usage conventionally and consequently decreasing the operational cost in leachate treatments.

Keywords

Ammonia, COD, Feldspar, Leachate, Optimization, Zeolite.

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Zawawi Daud ¹, Noorain Suhani ¹, Radin Maya Saphira Radin Mohamed ¹, Halizah Awang ²

Affiliations
1 Team of Research in Integrated Solid Waste Management (TRISM), Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, MY
2 Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, MY

Abstract

Kitchen wastewater that is discharged to the environment is one of the contributing factors to water pollution in Malaysia and other developing countries. Various techniques have been employed to remove the pollutants namely, physical, chemical and biological treatment. Biosorption is one of the biological treatments that has emerged as a new technology for the removal and recovery of pollutants, which is more environmental friendly. This study focuses on the effectiveness of the kitchen wastewater treatment systems using low-cost natural fibre of banana trunk (Musa sapientum) as biofibre to remove COD, ammonia nitrogen, suspended solids, turbidity, colour, and oil and grease from kitchen wastewater. The optimum adsorption capacities of banana trunk biofibres were investigated under several conditions, namely, pH, absorbent dosage, speed and contact time. The optimum pH was found to be 6. The experimental results obtained were satisfactory at a dosage of 2 g at 150 rpm. The banana fibres show satisfactory COD removal of 88%, ammonia nitrogen of 84%, suspended solids of 83%, turbidity of 75%, the colour of 67% and oil and grease of 68% respectively. Maximum removal was achieved at 2 hours contact time. The study reveals that the banana fibres could be acceptable for efficient removal of organics and nutrients present in the kitchen wastewater.

Keywords

Banana Trunk Biofibres, Biosorption, Kitchen Wastewater.

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