Sains Malaysiana 52(4)(2023):
1087-1099
http://doi.org/10.17576/jsm-2023-5204-05
Anaerobic Biological Treatment of
Wastewater from Paper Recycling Industry by UASB Reactor
(Rawatan Biologi Anaerobik Air Sisa
daripada Industri Kitar Semula Kertas oleh Reaktor UASB)
AAIMA
IFTIKHAR1, MALIK TAHIR HAYAT1, BIBI SAIMA ZEB1,
MARIA SIDDIQUE1, ZULFIQAR AHMED BHATTI1, UMARA ABBASI1 & QAISAR MAHMOOD1,2,*
1Department
of Environmental Sciences, COMSATS University Islamabad, Abbottabad Campus,
Abbottabad 22060, Pakistan
2Department
of Biology, College of Science, University of Bahrain, Sakhir 32038, Bahrain
Diserahkan:
4 Oktober 2022/Diterima: 25 Mac 2023
Abstract
The
use of an upflow anaerobic sludge blanket (UASB) reactor for the treatment of
paper recycling industry effluent containing different pollutants was
investigated. In the first phase, reactor was fed with anaerobic sludge and in
the second phase, synthetic influent solution with different macro-nutrients
and micro-nutrients, trace elements as well as glucose were added as a basis of
food and energy. In order to enhance sludge granulation and increase the
growth, anaerobic bacterial biomass culture was added and operated for one
month. Samples from paper recycling industry effluent with different dilutions
were analyzed at a hydraulic retention time (HRT) of 24 h and at 37 °C
mesophilic temperature. The removal efficiencies of chemical oxygen demand
(COD), biological oxygen demand (BOD), electrical conductivity (EC), total
dissolved solids (TDS), total suspended solids (TSS), total solids (TS),
nitrates, phosphates, heavy metals (Hg, Pb, Cd, Cr, Cu) and pH were upto 87%,
93%, 77%, 79%, 88%, 82%, 92%, 94%, 86%, 91%, 93%, 98%, 98%, and 7.21 with
different of wastewater concentration/percent dilutions 1:9, 2:8, 3:7, 4:6,
5:5, 6:4, 7:3, 8:2, 9:1, 10:0 wastewater. This study concluded that UASB
technique was a suitable choice for treating different pollutants in paper
recycling industry wastewater.
Keywords:
Paper recycling industry wastewater; substrate utilization rate; upflow
anaerobic sludge blanket (UASB) reactor; wastewater treatment
Abstrak
Penggunaan
reaktor enapcemar anaerobik aliran atas (UASB) untuk rawatan efluen industri
kitar semula kertas yang mengandungi bahan pencemar berbeza telah dikaji. Pada
fasa pertama, reaktor telah disuap dengan enapcemar anaerobik dan pada fasa
kedua, larutan influen sintetik dengan nutrien makro dan mikro-nutrien yang
berbeza, unsur surih serta glukosa ditambah sebagai asas makanan dan tenaga.
Untuk meningkatkan granulasi enap cemar dan meningkatkan pertumbuhan, kultur
biojisim bakteria anaerobik telah ditambah dan dikendalikan selama satu bulan.
Sampel daripada efluen industri kitar semula kertas dengan pencairan berbeza
dianalisis pada masa pengekalan hidraulik (HRT) selama 24 jam dan pada suhu
mesofilik 37 °C. Kecekapan penyingkiran permintaaan oksigen kimia (COD),
permintaan oksigen biologi (BOD), kekonduksian elektrik (EC), jumlah pepejal
terlarut (TDS), jumlah pepejal terampai (TSS), jumlah pepejal (TS), nitrat,
fosfat, logam berat (Hg, Pb, Cd, Cr, Cu) dan pH adalah sehingga 87%, 93%, 77%,
79%, 88%, 82%, 92%, 94%, 86%, 91%, 93%, 98%, 98% dan 7.21 dengan kepekatan air
sisa/peratus pencairan 1:9, 2:8, 3:7, 4:6, 5:5, 6:4, 7:3, 8:2, 9:1, 10:0 air
sisa. Kajian ini merumuskan bahawa teknik UASB adalah pilihan yang sesuai untuk
merawat bahan pencemar yang berbeza dalam air sisa industri kitar semula
kertas.
Kata
kunci: Air sisa industri kitar semula kertas; kadar penggunaan substrat;
rawatan air sisa; reaktor enapcemar anaerobik aliran atas (UASB)
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*Pengarang untuk surat-menyurat; email: mahmoodzju@gmail.com
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