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Integrated Anoxic-Oxic Sequencing Batch Reactor Combined with Coconut Fiber Waste as Biofilm and Adsorbent Media

Hendrasarie Novirina, Zarfandi Firdinsyah Iqdam

Journal of Ecological Engineering

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2023

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Vol. 24, nr 11

176--189

EN

Coconut fiber waste has the potential to become a value-added product as a biofilm media and an adsorbent. The addition of biofilm media and adsorbent is important because it reduces the amount of sludge produced in wastewater. Furthermore, the quality of wastewater produced by the Integrated Anoxic-Oxic Sequencing Batch Reactor (IASBR)process with the addition of biofilm media and adsorbents can be used as clean water. The wastewater used comes from apartment wastewater. The Integrated Anoxic-Oxic Sequencing Batch Reactor was used to determine the optimal anoxic-aerobic processing time in a tropical climate. The study will further compare the efficiency of the two by using discarded coconut fiber as an additional adsorbent and biofilm media. The optimal adsorbent dose and weight of waste coconut fiber, as well as hydraulic retention time optimization, were all examined. As a result, clean water was discovered to be the primary product after the addition of adsorbent and biofilm media made from waste coconut fiber.

2

Unlocking the Energy Potential of Temple Waste and Coconut Fiber through Refuse-Derived Fuel Production toward Sustainable Energy

Wijaya I. Made Wahyu, Wiratama I. Gusti Ngurah Made, Putra I. Kadek Ardi, Atmaja Ni Putu Cempaka Dharmadewi

Ecological Engineering & Environmental Technology

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2023

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Vol. 24, iss. 7

19--29

EN

Organic temple waste has the potential to be used as biomass-based fuel, with a 90% composition of biodegradable waste consisting of leaves, flowers, fruit, and food scraps. To minimize environmental impact, proper management efforts are necessary to handle the temple waste and produce a valuable product. An alternative method for dealing with organic waste includes producing fuel from biomass which is refuse-derived fuel (RDF). This would not only create a new product for waste wages but also prevent them from ending up as waste in the landfill. The current research aimed to investigate the characteristics of organic temple waste and coconut fiber as RDF material and its potential to replace coal use. The RDF was produced from temple waste using leaf and flower components combined with coconut fiber as the primary ingredients. The material was dried, ground, and produced into powder form before it was analyzed in terms of its characteristics. RDF made from temple waste has best result among coconut fibre and the both mixture with above 4800 kcal/kg. It belongs to class 2 solid fuels based on their characteristics, according to the National Standard for biomass-based fuel. Furthermore, the RDF still needs to be improved for industrial scale and requirement. Product durability test has shown good result for the temple waste material comparing with coconut fibre and coal. The study showed that temple waste and coconut fibre are promising to be processed into RDF as coal substitution in the combustion process.

3

The influence of coconut fibre and salts composite used for eliminating slipperiness and on roads on soils

Łuczak K., Kusza G.

Ecological Chemistry and Engineering. A

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2015

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Vol. 22, nr 4

481--488

EN

The subject of the study is analyzing the impact of coconut fibre and salt mixture used for eliminating slipperiness on roads on roadside soil. The tests were done on the soil samples taken from the fixed areas twice: in the autumn before applying the composite and in the following spring. Laboratory tests indicated decrease of conduciveness in soil after using the composite in wintertime. This can cause decreasing saltiness of roadside soil. In contrast to commonly used methods of eliminating slipperiness on roads with salts only applying the composite could diminish the negative effects of roadside soil saltiness.

PL

Przedmiotem badań jest analiza wpływu zastosowanego kompozytu mieszanki włókna kokosowego i soli drogowej do usuwania śliskości drogowej na gleby w pasie przydrożnym. Badania laboratoryjne przeprowadzono na próbkach gleby pobranych z wyznaczonych poletek doświadczalnych w dwóch okresach: jesiennym przed zastosowaniem mieszanki oraz wiosną roku następnego. Analizy laboratoryjne wykazały głównie spadek wartości przewodnictwa właściwego po okresie zimowego stosowania zaproponowanego kompozytu, przyczyniając się do redukcji zasolenia gleb przydrożnych. Zastosowanie omawianej metody do usuwania śliskości jezdni może przyczynić się do zmniejszenia negatywnych skutków procesu zasolenia gleby w porównaniu z powszechnie stosowanymi technikami wykorzystującymi wyłącznie mieszanki samych soli.

4

Tribological and physical properties of polypropylene filled by natural fibres

Běhálek L., Lenfeld P., Seidl M., Bobek J., Dvořáčková Š., Ausperger A.

Tribologia

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2013

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nr 1

25--34

EN

This paper deals with the tribological and physical property analysis of polypropylene filled by selected natural fibres of vegetable and animal origin (coconut, flax, cellulose and fleece fibres) from the application point of view. Tribological properties of injection parts are evaluated through surface roughness and friction coefficient. Physical properties are evaluated in light of melt flow behaviour, the strength characteristics of injection parts, flammability, and shape stability both under lower and higher temperatures.

PL

Niniejszy artykuł prezentuje właściwości tribologiczne i fizyczne analizy polipropylenu wypełnionego włóknami pochodzenia naturalnego, roślinnego i zwierzęcego (głównie kokosowe, włóknina, len i włókna celulozowe). Właściwości tribologiczne wtryskiwanego detalu są oceniane pod kątem chropowatości powierzchni oraz współczynnika tarcia. Właściwości fizyczne są oceniane pod kątem zachowania przepływu roztopionego materiału, cech wytrzymałościowych wtryskiwanej wypraski, palności i stabilności kształtu wypraski zarówno przy niskich, jak i w wysokich temperaturach.