Assessment of the Variations in Characteristics and Methane Potential of Major Waste Products from the Brazilian Bioethanol Industry along an Operating Season


Anaerobic digestion appears to be a favorable option to optimize the energetic exploitation and reduce the environmental impacts of bioethanol waste products. Some analytical characteristics of these waste products are available in various sources. However, these data are too incomplete and unsystematic to be compared among the bioethanol industries. Design of biogas processes based on such data has to deal with considerable unknowns regarding the technical feasibility and operating costs. Therefore, to better understand and assess the applicability of these bioethanol waste products in anaerobic digestion, the micro- and macro-element concentrations, the physicochemical parameters, and the methane potential were analyzed. In addition to the assessment of seasonal variations, the effect of alkaline and mechanical treatments was also investigated for lignocellulosic bagasse samples. Possible deficiencies of the trace elements Ni, Co, Mo, Se, and W in vinasse as a substrate for anaerobic digestion were recorded. The correlation between the gradual increase in methane yields of vinasse and filter cake along the bioethanol operating season and the dynamic changes in the substrate characteristics was shown. Moreover, the methane yield of raw bagasse increased by 50% after applying both treatments in combination.

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Steam Basics Part 2: Steam Inlet Pipe Size of Steam-to-Water Heat Exchangers


Many institutional and industrial projects use steam to heat the water for hydronic heating, domestic water, or processes. The pipe size prior to the steam control valve is often shown, but the pipe size from the control valve to the steam-to-water heat exchanger or converter is rarely shown. A question we receive often is, “What is the right steam inlet pipe size, after the control valve entering the heat exchanger?” 

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The 3-D Global Spatial Data Model: Principles and Applications, Second Edition

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5 Ways to Deal with Someone Who’s Always Looking for a Fight


Whether it’s a romantic partner, co-worker, in-law, or just someone you are in frequent contact with who always expresses the yin to your yang, the chronically disputatious person can be annoying, to say the least. People are bound to disagree with each other from time to time, but when someone constantly argues with you, it suggests that the problem isn’t with your relationship, but with that bickerer. Imagine that a friend asks you for advice on how to make fried chicken. As you reveal the secrets to your best family recipe, the friend interrupts you and suggests in know-it-all fashion that it’s better to use corn flakes than bread crumbs. If your friend is such an expert, then why ask your advice in the first place? When such antagonistic behavior isn’t just a one-time thing, new research on anger suggests, something else might be at the root of the problem but there may be ways you can deal with it.

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Good and Mad: The Revolutionary Power of Women’s Anger

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25 Ways to Stop Arguing and Preserve Love in Relationships: A Quick, Easy & Effective Guide on How to Communicate with Confidence & Save Your … with Family (How to Win At Life)

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25 Amazing Things Seen Under a Microscope


Awesome microscopic reality. Prepare to explode in wonder!

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Cardinal Arinze: If Protestants want to receive Communion, they should become Catholic


“What does the Church do that is as great as the Mass?” asked Cardinal Arinze. “The Church has only one possession equal to the Mass and that is another Mass. Nothing else.

“It is very important to look at the doctrine,” he added. “The Eucharistic celebration of the Mass is not an ecumenical service. It is not a gathering of those who believe in Christ and who invent a prayer for the occasion. It is a celebration of the mysteries of Christ who died for us on the Cross, who made bread into His body and wine into His blood and told the Apostles ‘do this in memory of me’.

“So the Eucharistic celebration of the Mass is the celebration of the faith community, those who believe in Christ. They are communicating in the faith, and in the sacraments, and in ecclesiastical communion, not now Holy Communion but ecclesiastical unity with their pastor, their bishop and the Pope. It is the community that celebrates the Holy Eucharist. Anybody who is not a member of that community does not fit in at all.

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Freedom Motors Aims to Fuel ‘Flying Car’ Engine with Low Quality Biogas


California based rotary engine manufacturer, Freedom Motors, has developed a version of its Rotapower® engine that can use contaminated biogas to generate electricity.

https://waste-management-world.com/a/freedom-motors-aims-to-fuel-flying-car-engine-with-low-quality-biogas

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