Comparison of litter quality, performance, and some welfare parameters of broilers reared on the sepiolite-supplemented paper waste sludge

In this work, paper waste sludge (PWS) collected from the primary settling tank of the paper wastewater treatment plant was utilized to generate hydrochar as a low-cost adsorbent for removal of Cr(VI) from aqueous solution. The characteristics of paper waste sludge hydrochar (PWSH) and the effects of adsorption conditions of Cr(VI) onto PWSH, including solution pH (3-9), contact time (5-240 min), initial Cr(VI) concentration (10-80 mg/L) and the adsorbent dose of 1 g/L at room temperature (25±2°C) were investigated. Adsorption isotherm and kinetics were also predicted in this work. The results indicate that the maximum adsorption capacity achieved 11.89 mg/g at 120 min of contact time, pH 3, and initial Cr(VI) concentration of 60 mg/L. The adsorption isotherm was reflected the best by the Langmuir model (R2 of 0.9968). Whereas, the adsorption kinetic also indicates that the pseudo-second-order model predicted the best for Cr(VI) adsorption process with a R2 of 0.9469. The mechanism of Cr(VI) adsorption process onto PWSH was chemical sorption through electrostatic interaction and ion exchange.

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Energy conversion assessment of vacuum, slow and fast pyrolysis processes for low and high ash paper waste sludge

Energy Conversion and Management ◽

10.1016/j.enconman.2015.12.043 ◽

2016 ◽

Vol 111 ◽

pp. 103-114 ◽

Cited By ~ 21

Author(s):

Angelo J. Ridout ◽

Marion Carrier ◽

François-Xavier Collard ◽

Johann Görgens

Keyword(s):

Energy Conversion ◽

Fast Pyrolysis ◽

Waste Sludge ◽

Paper Waste ◽

Pyrolysis Processes

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Utilization of paper waste sludge in the building construction industry

Resources Conservation and Recycling ◽

10.1016/s0921-3449(01)00051-9 ◽

2001 ◽

Vol 32 (2) ◽

pp. 105-113 ◽

Cited By ~ 62

Author(s):

B Ahmadi ◽

W Al-Khaja

Keyword(s):

Construction Industry ◽

Building Construction ◽

Waste Sludge ◽

Paper Waste

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Paper waste sludge derived-hydrochar modified by iron (III) chloride for effective removal of Cr(VI) from aqueous solution: Kinetic and isotherm studies

Journal of Water Process Engineering ◽

10.1016/j.jwpe.2020.101877 ◽

2021 ◽

Vol 39 ◽

pp. 101877

Author(s):

Lan Huong Nguyen ◽

Huu Tap Van ◽

Quang Trung Nguyen ◽

Thu Huong Nguyen ◽

Thi Bich Lien Nguyen ◽

...

Keyword(s):

Aqueous Solution ◽

Waste Sludge ◽

Paper Waste ◽

Effective Removal ◽

Solution Kinetic

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Paper waste sludge enhanced eco-efficient polyurethane foam composites: Physical-mechanical properties and microstructure

Polymer Composites ◽

10.1002/pc.24138 ◽

2016 ◽

Vol 39 (6) ◽

pp. 1852-1860 ◽

Cited By ~ 7

Author(s):

Agnė Kairytė ◽

Mikelis Kirpluks ◽

Aiga Ivdre ◽

Ugis Cabulis ◽

Sigitas Vėjelis ◽

...

Keyword(s):

Mechanical Properties ◽

Polyurethane Foam ◽

Waste Sludge ◽

Paper Waste

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DIMENSIONALLY STABLE WATER-BLOWN POLYURETHANE FOAM EXTENDED WITH BIO-BASED PROPYLENE GLYCOL AND MODIFIED WITH PAPER WASTE SLUDGE

Engineering Structures and Technologies ◽

10.3846/2029882x.2016.1277170 ◽

2017 ◽

Vol 9 (2) ◽

pp. 93-103 ◽

Cited By ~ 1

Author(s):

Agnė KAIRYTĖ ◽

Aiga IVDRE ◽

Saulius VAITKUS

Keyword(s):

Carbon Dioxide ◽

Compressive Strength ◽

Propylene Glycol ◽

Polyurethane Foam ◽

Environmental Problem ◽

Diffusion Rate ◽

Blowing Agent ◽

Waste Sludge ◽

Paper Waste ◽

High Diffusion Rate

Paper waste sludge (PWS) is the main and the greatest by-product in paper production process, and its elimination as well as destruction is a primary environmental problem. This research explores the feasibility of such wastes to be used in polyurethane foam composites. It is well known that using water as a sole blowing agent has major drawbacks such as long demould time, shrinkage, high diffusion rate of carbon dioxide and etc.; therefore, the bio-based propylene glycol (RPG) is used in order to solve such problems. The addition of 20 parts by weight (pbw) of RPG eliminates the primary shrinkage of the foam composites when PWS is used in the amount varying from 5% to 20%, and improves the dimensional stability at 70 oC and 90% relative humidity conditions. The addition of titanate coupling agent modified PWS particles increases the compressive strength of the final composites from ̴ 26% to ̴ 53%, from ̴ 17% to ̴ 31% and from ̴ 3% to ̴ 23% for, respectively, 10 pbw, 15 pbw and 20 pbw RPG extended foam composites.

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