ABSTRACT Production of carbon black from novel sources like spent automobile tyre, anthracite coal, furnace soot and graphite rod and subsequent use in the production of offset printing inks has been investigated. Carbon black from these sources were obtained by pyrolysis of shredded spent tyre and coal samples at 750-900o C in an electrical furnace, isolation of furnace carbon black and graphite rod from dry cell, drying and pulverization of the resulting samples. Acid demineralization of ...
Abstract The study area comprised Uburu and Okposi towns in Ohazara Local Government Area, Ebonyi state and it lies between latitudes 60 00’N and 60 05’N, and longitudes 70 44’E and 70 50’E. The area belongs to the saline hydrogeological groundwater basin of Albian Asu River Group in Cross River Basin. Three major outcrops of saline groundwater in the study area are: Umuchime- Uburu lake, Ivu-Ezizo and Amaechi-Okposi lakes. The saline lakes support long production of salts by rural ...
ABSTRACT The study in Gishwati forest Reserve aimed at determining the effect of anthropogenic activities on tree species diversity. Three areas within the forest were described as Disturbed Forest (DF), Natural forest (NF) and secondary forest (SF) in consideration of level of human disturbance. Data collection was done using plot sampling based on enumerating tree species (with a diameter at breast height ≥10 cm) within the forest, and observations to improve on validity and reliability o...
This research article briefly describes the experimental utilizations of plant or organic material (wonderful kola seeds) for the synthesis of iron oxide nanoparticles in a bid to understudy their applications and economic relevance. Furthermore, the characterization details were theoretically, chemically and statistically analyzed for data generation to compare with other data set, in line with nuclear applications and energy generation. Data obtained from the experimental procedure wer...
ABSTRACT Implementation of development control regulations has many challenges and impacts in rural Enugu State of Nigeria. This study focuses on the challenges and impacts of implementing development control regulations in rural settlements of Enugu State. Development control in rural Enugu State is ineffective due to building developers’ little or non-compliance with contravention notices served on them. The planning authorities in Enugu State have lacked the needed development control me...
ABSTRACT Changes in precipitation characteristics have been identified to exert profound socio-economic consequences over West Africa. This study analysed climate model simulation and projections of precipitation changes over West Africa using the Norwegian Earth System Model (NorESM with Lat-Lon resolution of 1.89° by 2.5°). The skill of the model in reproducing the observed precipitation was evaluated for the present-day (1980-2005), its bias and relationship was determined using satellit...
ABSTRACT The objectives of the study were to develop products from sorrel calyces, leaves and seeds, evaluate the products for nutrients, phytochemicals, antinutrients, food toxicant, physicochemical, microflora, sensory, storage properties and compare the products produced with existing products. Dry red sorrel calyces, leaves and seeds were used for the study. Pilot study was carried out to standardize recipe used for the formulation of the products. The products developed were jelly, cordi...
ABSTRACT The effect of torrefaction temperature and residence time on the fuel properties of lignite, biomass (coconut shells and cassava peels) and their blends was investigated. The samples were subjected to three torrecfaction temperatures (200, 260 and 300o C) and at two residence times (10 and 20 minutes) using programmable muffle furnace. Blends of torrefied lignite and biomass were prepared in two different ratios (80:20 and 70:30). The energy content, proximate and ultimate analyses o...
ABSTRACT Rivers State, The ‘Treasure Base Of The Nation’ and a commercial nerve centre of the Nation has over the years been confronted with the problem of rapid growing human and vehicular traffic congestion. This problem is largely caused by the rate of rural-urban migration of people into Rivers State. In fact, recent statistics have shown that over 10,000 people enter Rivers State on a daily basis. This figure results to an estimated five million people that move around Rivers State o...
Abstract This thesis consists of two parts. The first part deals with existerice and approximation techniques for finding solutions of operator equations or fixed points of operators belonging to certain classes of mappings. The classes of mappings studied include the K-posztz~~e definzte operators, the suppressive mappings and accretive-type rntippings. In particular, it is proved that for a real Banach space X, the equation Au = f, f E X, where A is a Kpd operator with the same domain as A'...
ABSTRACT The improvement of the combustion properties of coal and biomass by blending and carbonization was investigated. Proximate and ultimate analysis of coal, sawdust, corn cob and their blends were carried out using ASTM methods. The proximate and ultimate analyses were repeated on the five blends after carbonization at 500o C for one hour. Ten mixtures of coal-sawdust and coal-corn cob blends were made into briquettes using starch binder. The calorific values of the samples were determi...
ABSTRACT Research has shown that the popularization of plastic bottles in Bottling Industries has remained on the increase since middle of 1960’s, when high-density polyethylene was introduced. They quickly became popular with both manufacturers and customers due to their lightweight nature and relatively low production costs compared with glass bottles. Except for wine or beer, the food industry has almost completely replaced glass with plastic bottles. Despite this innovation, there has c...
ABSTRACT The study was conducted in the months of July-September 2017 to assess the socioeconomic impacts of the invasive Typha domingensis (Uchytil 1992) on local communities in Nguru, Kakori and Dogon Kuka towns all along the Nguru wetland in Nguru Local Government Area, Yobe State, Nigeria. A total of 171 respondents comprising of local communities and officials of the Hadejia Nguru Wetland Conservation Project (HNWCP) and Komodougu Yobe Basin Wetlands Development Initiative (KYB-WDI) part...
ABSTRACT. Waste disposal and groundwater quality studies were carried out in the Jimeta- Yola area. The area lies between latitudes 9'1 1'N to 9'20'~ and longitudes 12'23'~ to 12'33'~~ and covers an areal extent of about 305km2. Groundwater quality monitoring was carried out through the collection of water samples from hand-dug wells, boreholes and leachates beneath refuse dumps. These samples were analyzed chemically and bacteriologically using atomic absorption spectrophotometer (AAS), DW20...
ABSTRACT This research is aimed at determining the impact of household solid waste disposal practices on the environment of Enugu metropolis. This is with a view to developing appropriate strategies for improving solid waste disposal system in Enugu metropolis. The objectives of the study were to: (i) examine the existing nature of household solid waste disposal practices in Enugu metropolis, (ii) identify the pattern of household solid waste disposal practices, (iii) identify the environment...