Sains Malaysiana 46(10)(2017): 17631769

http://dx.doi.org/10.17576/jsm-2017-4610-13

 

Use of Ammonium-enriched Skim Latex Serum to Compost Rubber Biomass Wastes and Its Effect on Planting Brassica alboglabra

(Kegunaan Serum Skim Lateks Diperkaya Amonium untuk Pengkomposan Biojisim

Sisa Getah dan Kesannya ke atas Penanaman Brassica alboglabra)

 

JUTARUT IEWKITTAYAKORN1*, JUNTIMA CHUNGSIRIPORN1 & PRUKRAYA PONGYEELA2

 

1Department of Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand

 

2Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand

 

Received: 26 September 2017/Accepted: 3 March 2017

 

 

ABSTRACT

Ammonium-enriched skim latex serum - used for absorption of contaminating ammonia gas - when composted with other rubber tree wastes, is promising as a good compost. The objective of this research was to utilize ammonium-enriched skim latex serum (S) as a raw composting ingredient after being combined with para sawdust (W1) and para rubber leaves (W2). Several ratios of S, W1 and W2 were experimented in a 15L composting vessel to determine the most effective compost. The best ratio was found to be 3:1:3 by weight at 12-day retention. The modified 30 L composting reactor employed with the derived optimum mixing conditions yielded N, P and K of 2.40, 1.51 and 14.84 %w/w. The growth of Brassica alboglabra after application of this compost combined with a chemical fertilizer generated the highest fresh weight (4.48 g/plant). Thus, compost from these wastes could be used as a fertilizer and logically should contribute to cost saving of waste disposal.

 

Keywords: Compost; fertilizer; rubber industry waste; skim latex serum; waste disposal

 

ABSTRAK

Serum skim lateks diperkaya amonium - digunakan untuk penyerapan gas amonia yang tercemar- apabila dikompos bersama sisa pokok getah yang lain, ia dijanjikan sebagai satu kompos yang baik. Objektif kajian ini adalah untuk menggunakan serum skim lateks diperkaya amonium (S) sebagai bahan pengkomposan mentah setelah digabungkan bersama habuk papan (W1) dan daun getah (W2). Beberapa nisbah S, W1, dan W2 telah dikaji di dalam 15 L vesel pengkomposan bagi menentukan nisbah pengkomposan yang paling efektif. Nisbah terbaik didapati ialah nisbah 3:1:3 berdasarkan berat pada 12 hari retensi. Reaktor pengkomposan yang diubah suai ke 30 L dengan menggunakan kondisi pencampuran optimum terbitan menghasilkan N, P dan K sebanyak 2.40, 1.51 dan 14.84 %w/w. Pertumbuhan Brassica alboglabra selepas aplikasi pengkomposan yang digabungkan bersama baja kimia menjana berat basah yang paling tinggi (4.48 g/pokok). Oleh itu, kompos daripada kesemua sisa yang digunakan dapat dijadikan sebagai baja dan harus menyumbang kepada penjimatan kos pelupusan sisa.

 

Kata kunci: Baja; kompos; pelupusan sisa; serum skim lateks; sisa industri getah

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*Corresponding author; email: jutarut.p@psu.ac.th

 

 

 

 

 

 

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