Volume & Issue: Volume 10, Issue 1, Winter 2019 
1. Sequestration of Copper (Ii) and Iron (Ii) Ions from Electroplating Effluent Using Chitosan Crab Shells Stabilized Silver Nanocomposite Obtained

Pages 1-9

Abdulmumuni Sumaila; Mohammed Ndamitso Mohammed; YAHAYA IYAKA AHMAD; SAKA AMBALI ABDULKAREEM; Tijani Jimoh (Nigeria)


3. Modelling and optimization of photocatalytic degradation of naphthalene using ZnO-ZnFe2O4 composite

Pages 17-22

Abdulhamid Hamza; Aminu Dikko Mahmud; Aisha Zubair; Bello Mukhtar, (Nigeria)


5. The Circular Economy Business Model of Algoland

Pages 33-37

Joacim Rosenlund; Catherine Legrand, (Sweden)


6. Recycling of Multilayer Packaging Foils by using Diferent Organic Solvent

Pages 38-42

Tamari Mumladze; Maksym Tatariants; Asta RimšaitÄ—; Samy Yousef; Gintaras Denafas, (Lithuania)


7. Modern Technologies of Natural Manure Treatment in Livestock Production

Pages 43-48

Kamila Mazur; Kamil Roman; Kinga Borek,(Poland)


9. Phytoremediation as a Promising Method for the Treatment of Contaminated Sediments

Pages 58-64

Yahya Jani; Richard Mutafela; Laura Ferrans; Gao Ling; Juris Burlakovs; William Hogland, (Sweden)