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Phang, Siew‐Moi; Miah, Md. Sumon; Yeoh, B. G.; Hashim, Mohd Ali

doi:10.1023/a:1008157731731

Cited by 187 publications

(18 citation statements)

References 7 publications

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“…The characteristic of primary Sago effluent: The concentration of BOD, COD and TSS in primary effluent were 1038.75, 3992 and 2900 mg L −1 respectively. Previous study by Phang et al (2000); Bujang et al (2005) and Ibrahim et al (2006) reported the BOD, COD and TSS in primary effluent could be range from 910-1300, 780-5130 and 19-20000 mg L −1 respectively. Those range certainly did not comply with the regulatory requirement of Department of Environment (1974).…”

Section: Discussionmentioning

confidence: 90%

The Potential of Extended Aeration System for Sago Effluent Treatment

Rashid¹,

Musa²,

King³

et al. 2010

American Journal of Applied Sciences

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Problem statement: Sago effluent contains large amount of organic material which has a potential to cause water pollution. In order to reduce this problem, an experiment was conducted to remove organic material from sago effluent using lab scale of Extended Aeration (EA) system. Approach: The EA system consisted of the combination of physical and biological treatment unit. For Physical Treatment Unit (PTU), the sago effluent was filtered using 710 µm mesh size filter. For Biological Treatment Unit (BTU), the effluent were mixed and aerated with activated sago sludge for 48 h. The treatment efficiency with respect to Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Total Suspended Solid (TSS) removal were evaluated and compared with regulatory requirement by Department of Environment, Malaysia. Results: The result showed, the EA system could reduce BOD, COD and TSS up to 84, 87.8 and 73% respectively, however it did not comply with the regulatory requirement. Conclusion: This study suggested the EA system have potential to be apply on sago effluent, however it should be integrated with additional treatment unit to achieve the effluent quality standard.

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Section: Discussionmentioning

confidence: 90%

The Potential of Extended Aeration System for Sago Effluent Treatment

Rashid¹,

Musa²,

King³

et al. 2010

American Journal of Applied Sciences

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“…Processing of sago stems produces approximately 25% sago flour and about 75% waste (McClatchey et al 2006). This huge amount of waste has good potential to be utilized since only a few portions of this waste is used as an ameliorant material (Zaimah et al 2012) and animal feed (Phang et al 2000), while the rest is left unused and causes environmental problem (Awg-Adeni et al 2013). Therefore, to increase the value-added of sago waste, it is necessary to analyze the sago waste.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of sago pith and sago bark waste from Seram Island, Maluku, Indonesia

et al. 2019

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Abstract. Siruru H, Syafii W, Wistara I. N. J, Pari G. 2019. Characteristics of Metroxylon rumphii (pith and bark waste) from Seram Island, Maluku, Indonesia. Biodiversitas 20: 3517-3526. Sago (Metroxylon rumphii Martius) pith waste (SPW) and sago bark waste (SBW) are lignocellulosic materials that can be used for various needs directly or indirectly. It is necessary to understand SPW and SBW characteristics to maximize their utilization. In this study, we analyzed the proximate, ultimate, and crystallinity by XRD, the functional groups by FTIR, morphology by SEM, and the derivate analysis of hot water-soluble extractives by GCMS. The contents of SPW and SBW hot-water soluble extractive, lignin, and holocellulose were 57.7 and 4.9%, 6.1 and 29.4%, and 45.74 and 66.74%, respectively. The volatile matter, ash content, silica, fixed carbon, C, H, and O contents of the SPW and SBW were 81.48 and 84.56%, 1.30 and 3.04%, 1.25% and 2.03, 12.77 and 18.06%, 37.93 and 44.64%, 6.37 and 6.49%, and 47.75 and 51.10%, respectively. The degree of crystallinity of SPW was 15.04%, while that of SBW was 47.28%, where both have a monoclinic structure with the main peak by 2Ɵ 16° and 26°. SPW and SBW contained several minerals such as silica, boron, sulfur, and phosphorus. The surface morphology of the SPW was porous with a small diameter and thin cell wall, while that of SBW was covered by minerals. Nitrogen, alcohol, and sugar group compounds were found more in SPW, whereas phenol compound was more in SBW. SBW has high lignin content and SPW has a very large amount of hot water-soluble extractive.

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“…Comparativamente Gonzalez et al (1997) reportaram máximas taxas de remoção de fosfato em efluente do processamento de laticínios de 0,30 mg/L.h em biorreatores fotossintéticos de geometria cilíndrica com a microalga Chlorella vulgaris. Adicionalmente, Phang et al (2000) verificaram máximas taxas de remoção de fosfato na ordem de 0,06mg/L.h em efluente de fecularia em lagoas de alta taxa com a cianobactéria Spirulina Platensis. Singh e Thomas (2012) obtiveram taxas de remoção de 0,03mg/L.h de fosfato de efluente doméstico em fotorreator de membranas com Chlorella vulgaris.…”

Section: Resultsunclassified

“…Diversos sistemas têm sido desenvolvidos considerando o metabolismo fotossintético destes organismos em lagoas de alta taxa (Phang et al, 2000;Powell et al, 2006Powell et al, , 2008Powell et al, , 2009, além de outras configurações de fotobiorreatores (Gonzales et al, 1997;Singh e Thomas, 2012). Estudos restritos, no entanto, têm sido direcionados para elucidar o potencial do metabolismo heterotrófico de microalgas para esta finalidade (Devi et al, 2012).…”

Section: Introductionunclassified

Influencia da temperatura na remocao de fosfato por microalgas em biorreatores heterotroficos

Vieira¹,

Jacob‐Lopes²,

Manetti³

et al. 2012

Ambi-Agua

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RESUMONeste trabalho, a eficiência da cianobactéria Aphanothece microscopica Nägeli em remover heterotroficamente fosfato total dissolvido do efluente do processamento de laticínios foi avaliada. Os experimentos foram conduzidos em biorreatores operados descontinuamente, alimentados com 4,5 L de efluente. As condições experimentais foram: concentração celular inicial de 0,2 g/L, pH ajustado a 7,6, reator isotérmico operando em temperaturas de 10, 20 e 30ºC, ausência de luminosidade e aeração contínua de 1 VVM. Os resultados mostraram que a remoção de fosfato é fortemente dependente da temperatura do processo. A cianobactéria A. microscopica Nägeli foi efetiva na remoção de fosfato, alcançando taxas de remoção de 3,77 mg/L.h, que refletiram em conversões de 98,4% em tempos de detenção hidráulica de 24 h.Palavras-chave: microalgas, biorreator heterotrófico, fosfato, efluente de laticínios. Influence of temperature in phosphate removal by microalgae in heterotrophic bioreactors ABSTRACTThe removal of total dissolved phosphate by the cyanobacteria Aphanothece microscopica Nägeli cultivated heterotrophically in dairy processing wastewater was investigated in this work. The experiments were carried out in bioreactors operating in a batch mode, fed with 4.5 L of wastewater. The experimental conditions were as follows: initial cell concentration of 0.2 g/L, pH adjusted to 7.6, isothermal reactor operating at temperatures of 10, 20 and 30ºC with absence of light and continuous aeration of 1 VVM. The results showed that phosphate removal is strongly dependent on process temperature. A. microscopica Nägeli was effective in the removal phosphate achieving removal rates of 3.77 mg/L.h, which reflected in the conversion of 98.4% in hydraulic detention times of 24 h.

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Cited by 187 publications

References 7 publications

The Potential of Extended Aeration System for Sago Effluent Treatment

The Potential of Extended Aeration System for Sago Effluent Treatment

Characteristics of sago pith and sago bark waste from Seram Island, Maluku, Indonesia

Influencia da temperatura na remocao de fosfato por microalgas em biorreatores heterotroficos

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