scholarly journals Potency of Indigenous Bacteria of Mt. Merapi, Arthrobacter chlorophenolicus for Chromium (VI) Bioremediation

2021 ◽  
Vol 933 (1) ◽  
pp. 012011
Author(s):  
A N Lathifah ◽  
A A Asmara ◽  
F A N Alfisyahr ◽  
F B Maziya
Keyword(s):  
Production Process ◽  
Hazardous Waste ◽  
Aquatic Environment ◽  
Aquatic Organism ◽  
Biological Method ◽  
Nutrient Media ◽  
Indigenous Bacteria ◽  
Carbon And Nitrogen ◽  
Chromium Vi ◽  
Arthrobacter Chlorophenolicus

Abstract Chromium (VI) in the production process, such as textile, tannery, and electroplating industry, produce hazardous waste when disposed of directly into the aquatic environment. Several chromium pollutions cases, not only in water but also in the aquatic organism, occurred in some regions in Indonesia. Various methods can reduce the Chromium (VI) waste. One of them is the biological method by employing such kinds of bacteria. Arthrobacter chlorophenolicus is a pioneer bacterium of Mt. Merapi, which can survive in the minimum conditions of the bacterial primary nutrients, carbon, and nitrogen. This study aims to investigate the ability of A. chlorophenolicus to remove Cr (VI) at various concentrations. The research was carried out by growing the A. chlorophenolicus into two nutrient media conditions, minimal and rich-nutrient media containing different concentrations of Cr (VI) (5, 10, 20 ppm) for eight days. The results showed that the A. chlorophenolicus were grown on both minimal and rich-nutrient media. The A. chlorophenolicus could reduce for about 80% of 10 and 20 ppm chromium in eight days. Our results indicate that A. chlorophenolicus, the pioneer bacteria of Mt. Merapi, has a grand promise for use in Cr (VI) remediation even under minimum nutrients conditions.

The Biological Sources of the Organic Matter in Poyang Lake Sediments

2013 ◽  
Vol 724-725 ◽  
pp. 431-436
Author(s):  
Ming Sheng Yang
Keyword(s):  
Organic Matter ◽  
Poyang Lake ◽  
Aquatic Organism ◽  
High Carbon ◽  
Carbon And Nitrogen ◽  
Biological Source ◽  
Biological Sources ◽  
Carbon And Nitrogen Content ◽  
Compound Specific Carbon Isotope ◽  
Absolute Advantage

We conducts a systematic study on the biological sources of the sediment organic matter through the analysis of the organic carbon and nitrogen content in the sediments of Poyang Lake, the n-alkanes as biomarker and the characteristics of the compound-specific isotope of n-alkanes. It is found that the C/N ratio of organic matter is less than 10 in Poyang Lake and that the organic matter mainly originates from lacustrine aquatic organism. The short-chain hydrocarbon takes absolute advantage in the n-alkanes. The value of C21-/C22+is greater than 1, which shows that the biomass of bacteria and algae is greater than the sum of the aquatic submerged plants and terrigenous organisms biomass. The value of (nC15+nC17)/(nC23+nC25) of n-alkanes is greater than 2, which reveals that bacteria and algae have an absolute predominance in aquatic organism. The high carbon n-alkanes come from terrigenous plants and their compound-specific carbon isotope demonstrates that C3plant is the main biological source.

Study of the specific activity of protein hydrolysates regarding test strains used to control of nutrient media

2017 ◽  
pp. 41-43
Author(s):  
Yu.S. Kovtun ◽  
A.A. Kurilova ◽  
L.S. Katunina
Keyword(s):  
Vibrio Cholerae ◽  
Streptococcus Pyogenes ◽  
Fish Meal ◽  
Specific Activity ◽  
Nitrogen Sources ◽  
Bovine Blood ◽  
Nutrient Media ◽  
Carbon And Nitrogen Sources ◽  
Carbon And Nitrogen ◽  
Agar Media

An evaluation of the specific activity towards the test strains of Streptococcus pyogenes Dick I, Vibrio cholerae non O1 P-9741 agar media containing, pancreatic hydrolysates of gelatin, soy, soy concentrate, maize gluten, fish meal, common kilka, bovine blood as carbon and nitrogen sources was made. The variations in the number, size and frequency of dissociation among the colonies of these test strains were discovered, which allow to develop a differentiated approach to the possible usage of studied hydrolysates.

scholarly journals Prevalence of Proteobacteria and Armatimonadetes phyla in a Photobioreactor under Carbon- and Nitrogen-Free Production Process

2017 ◽  
Vol 06 (02) ◽  
Author(s):  
Alonso A Orozco Flores ◽  
Jose A Valadez Lira ◽  
Cristina Rodriguez Padilla ◽  
Patricia Tamez Guerra ◽  
Rosa O Canizares Villanueva ◽  
...  
Keyword(s):  
Production Process ◽  
Carbon And Nitrogen

scholarly journals The Management Of Toxic and Hazardous Waste Materials In The Food Industry

2018 ◽  
Vol 73 ◽  
pp. 07020
Author(s):  
Herry Setiawan Taufan ◽  
Purwanto Purwanto
Keyword(s):  
Production Process ◽  
Hazardous Waste ◽  
Food Industry ◽  
Raw Materials ◽  
Waste Materials ◽  
Industrial Activities ◽  
Temporary Storage ◽  
Toxic Materials ◽  
Descriptive Approach

Activities of Industry can potentially be the pollutant and harm the environment if it is not managed properly and can be detrimental to the industries, people and the environment. One of them is the food industry that produces raw materials of products and waste from the production process in the form of hazardous and toxic materials waste. This research uses descriptive approach that aims to evaluate industrial activities that produce toxic materials and hazardous waste. The management and utilization of toxic and hazardous waste materials require the consent of the ministry of environment based on Regulation of Government number 101 of 2014. The method of utilization of toxic and hazardous waste materials that have been applied in other industries can be applied in the food industry. This utilization method is required for the management and utilization of toxic and hazardous waste materials in the food industry because the waste is not utilized or recycled, only stored in a temporary storage warehouse and later sent to the container

scholarly journals Study of Recycling and Treatment Methods Spent Pot Lining (SPL)

2020 ◽  
Author(s):  
Hooman Shirmahd ◽  
alireza akhond hafizi ◽  
ata jamavari ◽  
mohammad reza aboutalebi
Keyword(s):  
Adverse Effects ◽  
Production Process ◽  
Solid Waste ◽  
Hazardous Waste ◽  
Cell Function ◽  
Laboratory Scale ◽  
Aluminum Production ◽  
Treatment Methods ◽  
Human Dna ◽  
Cyanide Content

In this study, a summary of the processes performed on the SPL for recycling, reduction in toxicity and treatment were examined on an industrial and laboratory scale. In writing this research, an attempt has been made to address the useful processes that have taken place in this field. Spent pot lining or SPL is a type of solid waste that is produced in the aluminum production process. After 3 to 8 years, the cathode blocks become problematic and can no longer be used, and need to be replaced due to adverse effects on cell function. SPL is known to be a hazardous waste to nature due to its fluoride and cyanide content. Research has shown that SPL ingredients have destructive and very dangerous effects on human DNA, which is why they are so important to maintain and recycle.

scholarly journals FISH DISEASE AS A MONITOR OF LAKE WATER POLLUTION

2017 ◽  
Vol 5 (3) ◽  
pp. 209-212
Author(s):  
Bharti Dwivedi ◽  
Suchitra Banerjee
Keyword(s):  
Aquatic Environment ◽  
Large Scale ◽  
Aquatic Organisms ◽  
Aquatic Organism ◽  
Oxygen Depletion ◽  
Domestic Sewage ◽  
Microbial Populations ◽  
Septic Tank ◽  
Fish Disease ◽  
Ph Values

One of the greatest problems that the world is facing today is of environmental pollution. Increasing with every passing year and causing grave and irreparable damage to the environment .potentially harmful substances e.g. pesticides, heavy metals and hydrocarbons are often released into the aquatic environment. When large quantities of pollutants are released in water there may be immediate impact as measured by large scale. Sudden mortalities of fishes and other aquatic organisms. Lower levels of discharge may results in accumulation of the pollutants in aquatic organism. The end results which may occur long after the pollutants have passed through the aquatic environment include reduced metabolism, damage of skin and gills. Current study shows that some of the diseases caused by virus, pseudomonas, flavobacterium resulted from generally adverse water quality i.e., higher than usual quantities of organic material, oxygen depletion, change in pH values and enhanced microbial populations some infections with Serratia and Yesinia   may also well reflected contamination of water with domestic sewage e.g. leaking septic tank.

Reduction remediation of hexavalent chromium by bacterial flora in Cr(VI) aqueous solution

2010 ◽  
Vol 61 (11) ◽  
pp. 2889-2896 ◽  
Author(s):  
Qian Wang ◽  
Xinhua Xu ◽  
Fanglin Zhao ◽  
Zhihao Liu ◽  
Jinan Xu
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Low Cost ◽  
Bacterial Flora ◽  
Industrial Water ◽  
Indigenous Bacteria ◽  
Anaerobic Reactor ◽  
Priority Pollutant ◽  
Chromium Vi ◽  
Energy Conserving

Chromium(VI) is a priority pollutant in soils and wastewaters and reduction of Cr(VI) to Cr(III) is a solution to this problem. In this study a low-cost method was proposed to adapt indigenous bacteria and use them to reduce Cr(VI) in solutions. The experiment results show that Cr(VI) could be efficiently reduced by indigenous bacteria under anaerobic and pH-unadjusted conditions. After about 24 h the concentration of Cr(VI) could be reduced from 21.74 mg/L to below 0.5 mg/L. The observed Cr(VI) reduction rates were affected by temperature and pH. Cr(VI) in aqueous solutions could be reduced to Cr(III) completely and partly be incepted by the organisms. Cr(VI) reduction was enzyme-mediated. It was not an energy-conserving process but a detoxification reaction. This method could be used in an anaerobic reactor to treat low-concentration wastewater or industrial water as the last step.

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