Biotreatment of Marine Crustacean and Chicken Egg Shell Waste

1995 ◽  
pp. 302-319 ◽  
Author(s):  
M. G. Healy ◽  
R. O. Bustos ◽  
S. E. Solomon ◽  
C. Devine ◽  
A. Healy
2019 ◽  
Vol 8 (1) ◽  
pp. 25-31
Author(s):  
Sandro Nadeak ◽  
Jesica Mentari Hasibuan ◽  
Lies Widya Naibaho ◽  
Mersi Suriani Sinaga

Glycerol as a byproduct of biodiesel production was approximately formed 10-20% of the biodiesel weight. Impurities which contained in the glycerol such as inorganic salts, catalysts, water and matter organic non glycerol (MONG) which contained free fatty acids, fatty acids as residual of methyl ester, glycerides, and alcohols (generally methanol or ethanol) had a significant effect on glycerol concentration. We needed some treatment, especially to eliminate the impuritis. This study aims to purify glycerol by acidfication using phosphate and adsorption with chicken egg shell waste. This research was begun with the pretreatment of glycerol using phosphoric acid with the variable of test weight ratio (w/w) acid added 1: 0.2; 1: 0.4; 1: 0.6; 1: 0.8 and 1: 1 , continued with adsorption using thermally activated chicken egg shell waste with the variable weight percent adsorbent (%w/w) 3%, 6%, 9%, 12% and 15% with reaction conditions, stirring speed 250 rpm and adsorption time 120 minutes. The purest result was obtained at weight ratio (w/w) acidification of 1: 0.6, weight percent adsorbent (% w/w) 15% with glycerol content of 67.22%, density 1.171 g / cm3, moisture content 2.796%, ash content 13.852% and MONG content 16.130%.


2021 ◽  
Vol 11 (9) ◽  
pp. 246-258
Author(s):  
Magdalena Wasielewska

A chicken egg is a valuable animal product that has served people for centuries. Research carried out over the last dozen or so years shows that society's knowledge about them is still relatively small. The research cited in the text shows that only 23% of respondents know that the color of a hen's egg shell depends on the breed of the hen, and not on the way it is fed. As a result, some consumers choose eggs in the store by choosing their color instead of the official markings on each individual egg. Chickens' nutrition has a direct impact on the quality of the eggs they lay. Chickens fed with fodder with antibiotics lay eggs in which we can find the same antibiotics that the animal ate with the food. It has many side effects, however, the greatest of which seems to be bacterial drug resistance, caused by the use of the same strong antibiotics in the nutritional industry and in human hospital medicine. Bacteria have developed various resistance mechanisms. For example, Enterococcus spp. Has developed resistance to vancomycin, Salmonella Typhimurum to tetracyclines, sulfonamides and fluoroquinolones. However, it is possible to use antibiotics in poultry treatment, but it is very important in this case to strictly observe the grace periods necessary to eliminate the antibiotic from the animal's body. Some of the world's governments, aware of the dangers of such a state of affairs, are trying to combat the phenomenon of feeding poultry with antibiotic growth stimulants by introducing new norms, orders and bans in their countries. Antibiotics such as avoparcin, zinc-bacitracin and spiromycin have been discontinued. Chicken egg producers are finding newer and newer ways to circumvent these recipes. Non-antibiotic feed additives such as probiotics, phytobiotics, and specific herbs are used. An effective way to combat this phenomenon may be to educate the public on this topic.


2018 ◽  
Vol 14 (33) ◽  
pp. 239
Author(s):  
Aman Jean Baptiste ◽  
Memel Jean Didier ◽  
Kouassi Kouadio Daniel ◽  
Otchoumou Atcho

This study consists in looking for an improvement of Archachatina margina reproductions performances by amendment of the breeding substrates. As a result, five types of substrate were prepared by soil amendment at different rates (0%, 10%, 20%, 30% et 40%) with chicken egg shell powder. On these substrates, snails were raised from spat stage until they were laid. Reproductive parameters such as: age of first laying, the number of annual laying per animal, the number of eggs per laying on the different substrates were recorded. Overall, snail laying performances improved with increasing rate of substrate amendment. However, beyond a rate of 20%, the weight of eggs laid began to decline. The chicken egg shell powder is suitable for the amendment of the breeding substrate of snails Archachatina marginata in view of an improvement in their reproductive performance. The rate of amendment recommended to this effect is 20%.


2016 ◽  
Vol 60 ◽  
pp. 02007
Author(s):  
Irwan Lie Keng Wong
Keyword(s):  

3 Biotech ◽  
2017 ◽  
Vol 7 (3) ◽  
Author(s):  
Harikrishna Nagamalli ◽  
Mahalakshmi Sitaraman ◽  
Kiran Kumar Kandalai ◽  
Gopal Reddy Mudhole

Author(s):  
M Lubis ◽  
M H S Ginting ◽  
N F Dalimunthe ◽  
D M T Hasibuan ◽  
S Sastrodihardjo
Keyword(s):  

2021 ◽  
Vol 3 (2) ◽  
pp. 161-167
Author(s):  
Handan Ertürk

In this research, it was aimed to use the Chlorella Vulgaris algae, and eggshell waste (ESW) as different mineral sources for tomato plant nutrition in soilless culture. Algae is seen as safe, sustainable energy source. Egg shell waste is known to be valuable for high calcium content and minerals therefore, has been considered as mineral enrichment source. Although there are several papers on the soil nutrition, there is not as much information on eggshell waste and algae use for plant production in soilless culture. In the controlled atmosphere of the laboratory, a set-up was constructed for pumping the liquid medium (hydroponics) circulating in the tubes holding the tomato plantlets. The liquid nutrient solutions used for soilless culture treatments were media enriched with algae, enriched with ESW and blank (hydroponic only). Research was conducted for 3 months, the final weight of harvested tomatoes and mineral uptake of the plant (stalk and tomato) for different treatments were measured. Algae added medium gave higher results in tomato weight, than ESW added and blank treatments. Results showed that algae and ESW addition led to increased Ca content in harvested tomato, as well as minerals such as B, K, Mg, and Zn. The results were as expected in terms of increase in mineral contents, but the statistics showed no significant difference between treatments.


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