Experimentation of the Incineration of Paper Waste at the University Press of Ouagadougou (PUO)

Waste management and recycling is major problem in our developing countries for several reasons, including population growth. In Burkina Faso, various techniques for treating this garbage exist and among them, we can cite incineration. Incineration is a heat treatment of garbage that reduces the volume of the latter. This work relates to the experimental study of the incineration of paper waste from the incinerator of the University Press of Ouagadougou. The results of this study show that this device is very useful in that it allows the incineration of paper garbage produced by the printing press. It, therefore, has an environmental advantage because its use promotes better management of paper waste.

The Use of Soil Originated by the Pulp and Paper Waste Industry to Intensify the Recultivation Succession of Disturbed Lands

The utilization of waste resulting from the pulp and paper industry as soil for technical and biological recultivation of disturbed lands, industrial waste discharges and other applications in line with their intended purpose use have been explored. Analysis of soil resulting from the frozen sediments of lignin settled sludge of JSC "BPPM" with the WAS resulting from the sewage treatment facilities have been carried out, chemical and agrochemical composition as well as toxicological properties have been studied. It is established that the resulting soil can intensify the recultivation succession of disturbed lands and contribute to plants growth and biomass increase, and their reproduction ability.

Waste-Based Second-Generation Bioethanol: A Solution for Future Energy Crisis

The demand for more environmentally friendly alternative renewable fuels is growing as fossil fuel resources are depleting significantly. Consequently, bioethanol has attracted interest as a potentially viable fuel. The key steps in second-generation bioethanol production include pretreatment, saccharification, and fermentation. The present study employed simultaneous saccharification and fermentation (SSF) of cellulose through bacterial pathways to generate second-generation bioethanol utilizing corncobs and paper waste as lignocellulosic biomass. Mechanical and chemical pretreatments were applied to both biomasses. Then, two bacterial strains, Bacillus sp. and Norcadiopsis sp., hydrolysed the pretreated biomass and fermented it along with Achromobacter sp., which was isolated and characterized from a previous study. Bioethanol production followed by 72 h of biomass hydrolysis employing Bacillus sp. and Norcadiopsis sp., and then 72 h of fermentation using Achromobacter sp. Using solid phase micro extraction combined with GCMS the ethanol content was quantified. SSF of alkaline pretreated paper waste hydrolysed by Bacillus sp. following the fermentation by Achromobacter sp. showed the maximum ethanol percentage of 0.734±0.154. Alkaline pretreated corncobs hydrolyzed by Norcadiopsis sp. yielded the lowest ethanol percentage of 0.155±0.154. The results of the study revealed that paper waste is the preferred feedstock for generating second-generation bioethanol. To study the possible use of ethanol-diesel blends as an alternative biofuel E2, E5, E7, and E10 blend emulsions were prepared mixing commercially available diesel with ethanol. The evaluated physico-chemical characteristics of the ethanol-diesel emulsions fulfilled the Ceypetco requirements except for the flashpoint revealing that the lower ethanol-diesel blends are a promising alternative to transport fuels. As a result, the current study suggests that second generation bioethanol could be used as a renewable energy source to help alleviate the energy crisis..

A Review of Lightweight Composite Development Using Paper Waste and Pulverized Ceramics - Towards a Sustainable and Eco-Friendly Construction

Finding an effective framework for the consumption of municipal and construction/demolition wastes has been the main research consideration for decades. For different categories of wastes, there is a need for the development of working systems for cleaner utilization of the materials. This study is focused on the review of composite development using paper waste and pulverized ceramics. The issues discussed comprises; excessive waste production, the building sector’s ecological effects, paper waste availability, and proposed solutions to realizing a sustainable built environment. The study also discussed standard mortar and the various types that exist, lightweight mortar, its nature, intricacies of its production process, and the prior use of waste materials for its manufacture. Paper waste, although not having enough strength as conventional aggregate, but with its filling effect, could fit lightweight mortar production along with other similar aggregates. The study gave an overview of the methodological deficiency found and proposed viable approaches to combat these gaps and further advance sustainable and eco-friendly construction.

INVESTIGATION OF THE PROCESSES OF THERMAL DESTRUCTION OF CELLULOSE-CONTAINING (PAPER) WASTE

Materials of practical research work on thermal destruction of paper waste were presented. The main task was The comprehensive study of the aspects of carbon formation on the basis of analytical studies was considered, as well as using a specially built laboratory installation — a waste graphitizer. Research has been carried out on the effectivity of application of pyrolysis gases of the process as fuel to maintain the temperatures of the thermal destruction reaction. Practical examples have proved the possibility and expediency of using the solid residue of the reaction as a component in various fields of production. Bibl. 10, Fig. 1, Tab. 3.