Biohydrogen Production Process Economics, Policy, and Environmental Impact

2014 ◽  
pp. 363-390
Keyword(s):  
Environmental Impact ◽  
Production Process ◽  
Biohydrogen Production ◽  
Process Economics

scholarly journals Environmental impact assessment of tofu production process: case study in SME Sugihmanik, Grobogan

2021 ◽  
Vol 894 (1) ◽  
pp. 012004
Author(s):  
S Hartini ◽  
B S Ramadan ◽  
R Purwaningsih ◽  
S Sumiyati ◽  
M A A Kesuma
Keyword(s):  
Environmental Impact ◽  
Production Process ◽  
Wastewater Treatment Plants ◽  
Impact Category ◽  
Threshold Value ◽  
Frying Process ◽  
Good Taste ◽  
Water Pumps ◽  
The Impact

Abstract Tofu contains various substances that are very good when consumed to improve people’s nutrition. In addition, tofu also has good taste. The problem is that the tofu production process produces products and non-product outputs in the form of waste that is very dangerous if directly disposed of in the environment. The BOD5 content of tofu small and medium-sized enterprises (SMEs) in Sugihmanik Village ranged from 3,667-4,933 mg/L and COD 7,668-9,736 mg/L. At the same time, the TSS values ranged from 701-1,189 mg/L. The BOD5 value in the river water content is 367 mg/L. It greatly exceeds the set Threshold Value. This study aims to measure the environmental impact using Life Cycle Assessment (LCA). LCA can identify the impact of each activity based on the impact category to identify the processes that contribute significantly to damaging the environment. This study found that the cooking and frying process had the highest impact, where the climate change category was the largest. Wastewater treatment plants, biogas from the biodigester as a substitute for electricity for water pumps, rice husks, and corn cobs are expected to reduce environmental impacts. The first section in your paper

scholarly journals Accounting for Carbon Footprint Flows in Wine Production Process. Case Study in Spanish Winery

2020 ◽  
Vol 10 (23) ◽  
pp. 8381
Author(s):  
Miguel Marco-Fondevila ◽  
José M. Moneva ◽  
Fernando Llena-Macarulla
Keyword(s):  
Supply Chain ◽  
Environmental Impact ◽  
Production Process ◽  
Carbon Footprint ◽  
Value Chain ◽  
Corporate Image ◽  
Accounting System ◽  
Low Carbon ◽  
Wine Production

Companies are gradually becoming conscious about the necessity of reducing their environmental impact and adopting low-carbon strategies in order to cope with increasing institutional and social demands. However, remaining competitive while reducing the environmental impact and improving the corporate image requires adopting sophisticated mechanisms boosting eco-efficiency and keeping costs tight. Material Flows Cost Accounting (MFCA) is an instrument that allows the monitoring of, measurement of, and accounting for physical and monetary processes along the production process. If extended to the supply chain, and applied to the energy usage and CO2 emissions, it allows one to account for the Carbon Footprint (CF) of a company and its products at any given stage of the value chain. The current paper presents a case study developed under the framework of a three-year project to introduce an energy use and carbon emissions monitoring and accounting system in a large winery company in Spain, based on the MFCA approach and CF accountability. Including the supply chain of the company and the whole farming cycle of its main input, the case study presents the method and phases adopted to implement the project, its direct and indirect results and outcomes, and the conclusions that can be extracted, which may be inspirational for practitioners and scholars envisaging similar projects.

scholarly journals Eco-efficiency Level of Production Process of Waste Cooking Oil to be Biodiesel with Life Cycle Assessment

2020 ◽  
Vol 202 ◽  
pp. 10004
Author(s):  
Sri Hartini ◽  
Diana Puspitasari ◽  
Nabila Roudhatul Aisy ◽  
Yusuf Widharto
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Production Process ◽  
Oil And Gas ◽  
Negative Impact ◽  
Water Pressure ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Cooking Oil

Lack of awareness and knowledge of environmental protection, many people discard cooking oil waste. According to several studies, cooking oil waste can be processed into more valuable products through certain processes that require energy and material. Biodiesel is an example. Beside biodiesel, the production process also produces non-product output. Thus, efforts to utilize cooking oil waste into more valuable products also have a negative impact on the environment. This study aims to measure the environmental impact of biodiesel production from waste cooking oil and compare it if it is discharged to landfill without the recycling process. Measurement of environmental impacts is carried out using a Life Cycle Assessment. Measurement of the environmental impact of biodiesel processing from cooking oil waste is based on a process carried out at a research institute. The measurement results state that the disposal of cooking oil waste has an adverse effect on the ecotoxicity category. Whereas the processing of cooking oil waste into biodiesel has advantages in the categories of climate change, the formation of photochemical oxidants, fine dust, oil and gas depletion, and water pressure indicators. the level of eco efficiency from processing waste cooking oil to biodiesel produces a value close to one which means that the production process is affordable but not yet sustainable.

Improvement of Anaerobic Operation and Isolation Culture on Hydrogen-Producing and Fermentative Bacteria

2011 ◽  
Vol 183-185 ◽  
pp. 895-899
Author(s):  
Yong Feng Li ◽  
Jian Yu Yang ◽  
Xin Yu Pan ◽  
Jing Wei Zhang ◽  
Wei Han
Keyword(s):  
Production Process ◽  
Culture Media ◽  
Enrichment Culture ◽  
Biohydrogen Production ◽  
Culture Bottle ◽  
Fermentative Bacteria ◽  
Bacterium Growth

Isolation and culture of hydrogen-producing and fermentative bacteria is an important foundation on biohydrogen production process. There are complicated operation and composition in present anaerobic techniques and culture media. Hungate technique was improved and plate of culture bottle was established by comparing anaerobic methods and bacterium growth. Isolation and enrichment culture media were confirmed by the test of different composition and the species and amount of hydrogen-producing and fermentative bacterium. 550 bacterium strains were isolated by the anaerobic operation.

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