The use of waste materials in road construction is becoming widely spread due to economic and environmental needs. Construction demolition mining residues have been studied for a long time. However, the fine materials, mainly from mine tailing residue, still complex, as they can be used inert into mix or become reactive agent geopolymer mixes. In present paper, an experimental application basal...

Component concentration of sodium aluminate solution is an important quality index for alumina production. In this article, we propose a new on-line soft sensing strategy for measuring component concentration of sodium aluminate solution. With this method, on-line control can be realised in aluminate production plants. Several advance techniques are used, such as principal component analysis (P...

There is a great need to implement low-cost and user-friendly methods for further propagation of biogas technology in India. Environment unfriendly disposal of floral waste causes serious environmental pollution. Literature shows a limited research work regarding the anaerobic digestion of floral waste for biogas generation.  The present experimental work aims to propagate floral waste as a sus...

Objective: To obtain biofilms from starch and cellulose present in the avocado (Persea americana) peel seed. Materials methods: The characterization included humidity, gelatinization temperature, paste clarity, absorption index, solubility swelling power, amylose, amylopectin, amount, yield. Five mixtures were made with 3 g of starch, 5 mL 30 % NaOH (w/v), cellulose, different proportions for g...

As a green material, used date pits oil is increasingly utilized as inexpensive feedstock for ethyl ester (biodiesel) production. Waste date pits as a raw material are one of the highly produced agricultural wastes in Iran. This study investigated the effect of several procedure parameters including the ethanol/oil molar ratio, reaction temperature and amount of catalysts on the yield of the pr...

The phase transformation of aluminum hydrates yields various forms of alumina (d, q, K) and eventually alpha-alumina. The decrease in the specific surface area of alumina upon heat treatment is due to changes in crystalline structure and hence a decrease in the porosity of the material, Although the conversion of gamma-alumina to alpha-structure takes place with a lowering in surface area and p...

Introduction: Optimization of waste collection systems can reduce waste management costs. In this study, optimization of the waste collection system of district 3 of Yazd municipality of Iran has been investigated using underground containers. Materials and Methods: In this research, after collecting information and performing field inspections, the statistical and raster information obtained ...

The effect of temperature on bio-hydrogen production by co-digestion of sewerage sludge with food waste and its two derivatives, i.e. noodle waste and rice waste, was investigated by statistical modelling. Experimental results showed that increasing temperature from mesophilic (37 C) to thermophilic (55 C) was an effective mean for increasing bio-hydrogen production from food waste and noodle w...