Review on Denitrification Technologies of Landfill Leachate
The disposal of landfill leachate is a difficult problem in today’s water treatment industry. The landfill leachate contains high concentrations of ammonia nitrogen, which not only increases the difficulty of biological treatment, but also wastes a lot of ammonia energy. This paper reviews the current denitrification methods commonly used in landfill leachate, analyzes their advantages and disadvantages, and proposes the future development direction.
Under the background of new and old kinetic energy conversion, research on the integration and innovation of culture and packaging industry
Under the background of new and old kinetic energy conversion, based on the traditional culture and the outer packaging industry, with the modern design concept, digital art techniques to design a combination of traditional culture and modern packaging packaging forms, to achieve innovative finished product design. And through the use of internet thinking to achieve the extension of traditional culture and the transformation of commercial value, effectively promote the upgrading of the level of traditional industries.
Comparative Effect of Sesasons, Organomineral Fertilizer Ratios and Profitability of Cucumber Production (Cucumis Sativus L.) in Southwest Nigeria
Ensuring an adequate good nutritional supply has been a major concern of mankind over the millennia, and even in today’s modern world of great scientific and technological achievements. Fruits and vegetables are of great nutritional value and they are sources of vitamins and minerals, thus, essential components of human diet. Premise to the above challenge there is the need to evaluate the economics production of cucumber under different agronomic management in order to encourage local production among small holder farmers. Experiment to document the productivity of cucumber was in early and late cropping seasons of 2016 at Teaching and Research Farm of Obafemi Awolowo University (OAU), Ile-Ife, Nigeria. The experimental design was a split-plot laid out in a Randomized complete block design (RCBD) with three replications. The main plot include; four vine trailing methods (Staked, Trellised, Mulch and control) while sub-plots were six levels of organomineral fertilizers fortified in ratios (1:3, 1:1, 3:1 of organic with inorganic fertilizer;, 100% NPKha-1, 100% Organic Nha-1 and 0% Nha-1 as a control). The fertilizers were aimed to give 100% kg Nha-1. Data were collected on fruit yield per plot and yield was converted to hectare. The data collected were subjected to analysis of variance (ANOVA) using (SAS, 2003). Means of significant treatments were separated using the Duncan`s Multiple Range Test (DMRT). Also, gross margin analysis was carried out to know the profitability of the production seasons of cucumber. The data obtained from the experiments show that type of vine management and fertilizers significantly affected the yield of cucumber. Among the vine trailing methods investigated mulched method significantly enhanced the yield and subsequently produced the higher number of fruits and resulted in higher fruit yield per hectare. Ratio 1:1 combination of inorganic and organic fertilizers resulted in the highest number of cucumber fruits and…
Comparative evaluation of different sources of animal protein in broiler bird diets
The effect of different animal protein sources in broiler production was investigated. 300 seven-day old broilers of equal average initial weight were randomly allotted into five treatment groups with 3 replications of 20 birds each and at the end of 28 days, birds were weighed again and re-randomized to the five treatment groups with 3 replicates of 16 birds each. The diets consisted of four animal proteins. Treatment 1(Control) had 4% fish meal, while diet 2, 3, 4 and 5 had 1% of each of the animal protein source, 4% crayfish waste meal, 4% blood meal and 4% meat meal respectively. The study was conducted for 56 days of 28days starter phase and 28days finisher phase. The results showed blood meal to have the highest (P0.05) depression. The least cost per kg feed and least cost per kg weight gain (N) were observed with birds on crayfish diets. There was better (P
Testing partial memory with the British video lineup
Levi has hypothesized that witnesses with poor memory discount some lineup members as not fitting their partial memory of the target, thereby picking him often. In a comparison between British 10-person video lineups and 48-person lineups, they did not differ in identifications. Perhaps sequential video lineups prevented witnesses from hitting upon the discounting strategy. Fifty were asked to count the number of lineup members that they could discount, and then were given the lineup. Others were given the lineup first. We expected that the former group would have more identifications No difference was found. Reasons for this were discussed.
Juggling the Many Voices Inside: What It Means to Be an Emerging Adult
Background: Our late modern society has a focus on self-realization, managerialism and instrumental reasoning. A logic of choice dominates the lives of emerging adults. They are focused on “self-managing” their lives. Although many emerging adults can “flourish”, others are “floundering,” struggling with anxiety or lower self-perceptions. Theories on self-realization which focus on a capability or self-determination approach seem inadequate for understanding this reality. Aim: This article critically examines what it means to be an emerging adult in late modern society. It aims to counterbalance the dominant theories of self-realization by exploring a dialogical view on the “self”. It pays attention to the voices of the “selves” of emerging adults, including the internalized voice of society itself. Method: A narrative approach was followed. First, an interpretive narrative study was carried out with female respondents. The study employed in-depth focus group and individual interviews and the transcripts of the interviews were then analyzed thematically. We further analyzed the data according to the Listening Guide Approach. Findings: Self-realization is a dynamic relational and moral process. The findings illustrate the multiple voices and I-positions of emerging adults. In addition, the findings illustrate that in addition to agency, “passive receptivity” also plays an important role in the process of becoming an emerging adult.
Synthesis, Characterization and catalytic activity of Palladium-Based Metallodendrimer with Triazine
A novel Pd-based metallodendrimer has been directly prepared by the reaction of substituted triazine with substituted benzoyl chloride in good yields using (Ph3P)2PdCl2 and DMF at 70 oC. This procedure avoids the use of high temperature and severe reaction conditions. The surface morphology like as entangled nanofibers from SEM image and the presence of Palladium ions of the compound from EDX analysis were obtained in addition TG and DSC showed the good thermal stability of the compound. This white solid compound was found to be an effective homogeneous catalyst for the synthesis of ynones in where the synthetic route was copper and phosphine ligand-free.
Chemo-Remediation of Crude Oil Polluted Soils Obtained from Recent Polluted Site in Oil Producing Environs in Rivers State Nigeria
The chemo- remediation of crude oil polluted soils from recent pollution sites in oil producing environs in River state was carried out by both in vivo and in vitro methods using macro-soil nutrients ( Nitrate, Phosphate and Potassium) as index for remediation. The soil samples were labeled A, B, C, D1 to D6, sample A was obtained from pollution free site used as a control. Sample C was crude oil polluted soil not treated with surfactant, sample B was crude oil polluted soil leached with surfactant and not mineralized. Samples D1-D6 were polluted soil samples, leached with surfactant and mineralized with fertilizer. The samples were leached with linear alkyl benzene sulphonate (LABS) and later mineralized with Nitrate, Phosphate and Potassium (N.P.K) fertilizer and returned to the site of excavation to fallow for four months. The samples were later re-excavated and taken to the laboratory for analysis. Nitrate and phosphate contents were obtained with the aid of spectrum lab 725 UV visible spectrophotometer and potassium content was determined by use of a flame photometer. Results showed that sample A had nitrate concentration of 330ppm, sample B had concentration of 21ppm, sample C had a concentration of 54ppm while samples D-D6 had concentrations ranging from300ppm to 420ppm.Similarly, The phosphate concentrations were 68.50ppm, 17.00ppn, 28.00ppm and 48.80-136.40ppm for sample A, B, C.D1-D6 respectively. The potassium concentrations were not different as concentrations of 46ppm, 12ppm, 28ppm and 38ppm-64ppm was recorded for samples A, B, C, and D1-D6 respectively. These results revealed that crude oils not only renders soils unusable but also destroys the nutrient availability in soils. The soils can therefore quickly be reclaimed by leaching them with surfactants and mineralizing them with adequate inorganic fertilizer.
Mind in the Brain-Creation of the Greatest Virtual World
Human mind is a functional capability of the brain, by which information about sensory-motor contacts made through the nervous system are perceived and interpreted by the mind. While the detection and interpretations are subjective and experiential, they are based purely on a cascade of neurocognitive processes that unfold in the brain in response to external events or sequential changes detected over time and space. Experiential or subjective interpretations are generally based on the selected choices, and often depends on the cognitive judgments made by the individual. The cognitive judgments mold the drive present in the individual and it is experienced as positive or negative emotions by the individual. Drive is the fuel or energy present in the system for all responses and actions related to “seeking”, and they are automatically initiated when the drive reaches a Critical Level of Potentiation (Mukundan et al. 1). It is possible for an individual to become aware of the presence of the drive as well as the process of initiation of actions in the attempt to satisfying the drive. Scientific observations of the changes that occur in the physical and social environment, which are normally detected by the sensory-motor systems are repeatable and explain the time-space sequential relationships that exist in the physical universe. The major role of the mind is the experiential detection and interpretations of the sensory-motor events, which are experienced and expressed by the mental processes related to detection and expression. Subjective interpretations are generally based on personal experiences, which are highly suggestable and as per the needs experienced at personal and group levels by the individual minds. Individuals create goals and purposes for all actions, and in the process, the new functional systems of the mind are also created according to neuroscientific principles. The physical world shaped by man scientifically…
Cultivating college students self-discipline consciousness under the new media environment
Through the investigation and analysis of college students’ self-discipline in the new media environment, this paper summarizes the current situation and puts forward some feasible suggestions.