Research Papers/Topics in Chemical Engineering

VALORIZATION OF BIO-PLASTIC (PHA) FROM WASTEWATER AND CIRCULAR ECONOMY

ABSTRACT Circular economy requires sustainable supply of raw materials to industries. Social and economic networks are needed in order to develop circular economies that would drive value chains in renewable resource processing from wastewater into renewable bioplastic products. Current plastic is non-biodegraded which can cause harm to our environment. A pilot scale investigation was carried-out so as to evaluate the feasibility of producing value-added bioplastic from wastewat...

QUALITY CONTROL FOR WASTEWATER TREATMENT

Quality control is a checking test to monitor and ensure the wastewater treatment plant (WWTP) is at optimum efficiency. The tests are usually carried out on samples collected from specific points or stations in the WWTP.  The Influent sample, is collected after the fine screens. Aeration basin sludge, is collected from the point of overflow of the aeration basin, before it is sent to the clarifier. Return Activated Sludge (RAS) sample, is collected from the sludge pumping station...

WASTEWATER TREATMENT PROCESS AND TECHNOLOGY

Wastewater is made up largely of organic carbon, either in solution or as particulate matter. About 60% is in particulate form, consisting of proteins, amino acids, peptides, carbohydrate, fats and fatty acids. Wastewater treatment plant (WWTP) prevent potential waterborne disease outbreak. This is achieved by the active use of mechanical process and biological process of the treatment plant to treat and convert wastewater into clear effluent that meets specific standard. The efflue...

Drying and Particle Size Characteristics of Danta (Nesogordonia papavereria) and Hard Cross (Vitex doniana) Wood Sawdusts at Different Temperatures.

The drying and particle size characterization of Danta (Nesogordonia papavereria) and HardCross (Vitex doniana) hardwood sawdusts were investigated at temperatures 80 ºC, 90 ºC and105 ℃. The experimental drying data were modeled using eighteen existing drying models.The results showed that the modified Henderson and Pabis model offered the best fit to thedrying curves of Danta and Hard Cross sawdusts. The experimental data obtained from theparticle size distribution of both the samples we...

Production of Soy-Yoghurt by Fermentation of Soymilk with Lactobacillus Isolated from Nunu

The production of soy-yoghurt by fermentation of soymilk with lactobacillus isolated from nunu (a Nigerian indigenous fermented cow-milk) was studied. Soymilk was extracted from whole and dehulled soybean seeds and pasteurized. The fermentation was carried out with both the isolate from nunu and yoghurmet (a commercial yoghurt starter culture of Streptococcus thermophilus and Lactobacillus bulgaricus) as control. The percentage of soymilk inoculated was 70%, 80% and 100% of the broth. Soy-yog...

Solid(1)

  Nigeria’s Solid Minerals Resources AND LOCATIONS

DETERMINATION OF REMOVAL EFFICIENCY OF METHYLENE BLUE FROM AQUEOUS SOLUTION USING CHEMICALLY ACTIVATED CARBON PRODUCED FROM MANGO SHELL

ABSTRACTThe presence of methylene blue (MB) in wastewater is a major concern in the environment due to its low biodegrability and harmful effect on man. The treatment of effluent containing such dye is important where adsorption on activated carbon (AC) produced from agricultural waste is of great choice. Optimization of the removal efficiency of MB from aqueous solution onto AC prepared from mango shell was investigated. The AC was prepared from mango shell, activated with BaCl2 at I.R (0.03...

Distillation

It is on of the unit operation processes.

Production of MES by transesterification of castor oil

AbstractPetroleum based detergents are neither soluble nor biodegradable; they are so stable such that when they flow into the soil, sewer or surface waters, they remain unchanged, resisting conversion into less complex and more soluble substances. In this work methyl ester sulphonate (MES) was produced by transesterification followed by sulphonation of ricinoleic acid, a main constituent of castor oil. A detergent was produced from transesterification followed by sulphonation of castor oil a...

Cryogenic Science And Engineering

   ABSTRACTThis report is intended for a general insight into cryogenics. Different individuals may have faint ideas about what cryogenics are as much is not known here in Nigeria about what cryogenics are and this report work clearly gave a deeper knowledge of cryogenics     Chapter one gives a brief history of cryogenics and the various cryogenic temperatures that have been achieved since 1800 to 1965. Chapter two gives a general knowledge of the fundament...

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