COMPOST CONTENTS AND USES

Compost varies according to content, comporting procedures, age, storage conditions and particle size. Compost made mostly from wood products will have a much lower nutrient and soluble salt concentration than one made from leaves, grass clippings, sewage sludge, manures or food processing waste. Compost from efficiently managed systems optimizing microbial activity will tend to have higher soluble salt levels than compost from piles that are neglected and/or undisturbed.Regardless of which organic materials used in making compost it will have a pH between 6.2 and 7.2 when ready for use. The effectiveness of compost as a soil amendment and in formulating potting mixes is dependent on particle sizes and soluble salt concentrations. Particles should not be recognizable and less than 2.5 cm in diameter for optimum plant response. Soluble salt concentrations of the compost will determine rates of application and fertilizer regime.

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The utilization of waste egg and cockle shell as catalysts for biodiesel production from food processing waste oil using stirring and ultrasonic agitation

Energy Sources Part A Recovery Utilization and Environmental Effects ◽

10.1080/15567036.2015.1129375 ◽

2016 ◽

Vol 38 (21) ◽

pp. 3125-3131 ◽

Cited By ~ 4

Author(s):

T. Singhasiri ◽

N. Tantemsapya

Keyword(s):

Food Processing ◽

Biodiesel Production ◽

Processing Waste ◽

Waste Oil ◽

Ultrasonic Agitation ◽

Food Processing Waste ◽

Cockle Shell

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Consumer interests in food processing waste management and co-product recovery

Handbook of Waste Management and Co-Product Recovery in Food Processing ◽

10.1201/9781439824498.ch2 ◽

2007 ◽

Author(s):

B Gremmen ◽

L Frewer

Keyword(s):

Waste Management ◽

Food Processing ◽

Product Recovery ◽

Processing Waste ◽

Consumer Interests ◽

Food Processing Waste

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KUALITAS PAPAN KOMPOSIT DARI LIMBAH FINIR KAYU LAPIS BERDASARKAN UKURAN PARTIKEL DAN WAKTU PENGEMPAAN DENGAN MENGGUNAKAN PEREKAT LIMBAH PLASTIK POLIPROPILENA

JURNAL HUTAN LESTARI ◽

10.26418/jhl.v7i2.34757 ◽

2019 ◽

Vol 7 (2) ◽

Author(s):

Alfonsus Rodriquez ◽

Ahmad Yani ◽

Fathul Yusro

Keyword(s):

Particle Size ◽

Physical And Mechanical Properties ◽

Particle Sizes ◽

Hot Press ◽

Factor B ◽

Pressing Time ◽

Materials Used ◽

Absorption Thickness ◽

Water Contents

This study aims to analyze the quality of composite boards from plywood veneers waste and polypropylene plastic waste adhesives base on particle sizes, pressing times, and both of interaction towards physical and mechanical properties also to obtain the particle sizes and pressing time properly with the result that produce the qualified standard boards of JIS A 5908-2003. This research carried out at the wood workshop, laboratory of technology and processing of woods (the faculty of forestry, university of Tanjungpura), and the laboratory of PT. Duta Pertiwi Nusantara. The materials used in this study were plywood veneers waste and polypropylene plastic by 50% : 50% comparison. The research method was utilized the completely randomized factorial design by two treatment factors. Factor A was particle sizes that consisting of 6 mesh, 8 mesh, and 10 mesh. Factor B was pressing time that consisting of 10 minutes, 15 minute, and 20 minutes. Composite boards were created by 30 x 30 x 1 size in centimetres by means the density target was 0,7 gr/cm3. The pressing was done by hot press in 180oC temperature and composite boards conditioning for 14 days. The results of this study showed that the density, water absorption, thickness, Modulus of Repture (MOR), internal bonding, holding strength of screws in the composite boards have been qualified the standard of JIS A 5908-2003. While, the water contents and Modulus of Elasticity (MOE) testing were not qualified the standard of JIS 5908-2003. The treatment that produce the optimum composite boards which quality JIS A 5908-2003 standard was on the 8 mesh particle size treatment by means of 15 minutes pressing time.Keywords: Composite Board, Particle Size, Polypropylene Plastics, Pressing Time, Veneers Waste.

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