THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON

The Design and Analysis of Experiments

Application of low-cost adsorbents for dye removal – A review

https://cyberleninka.org/article/n/999493.pdf

New trends in removing heavy metals from industrial wastewater

Activation of persulfate (PS) and peroxymonosulfate (PMS) and application for the degradation of emerging contaminants

Landfill leachate treatment: Review and opportunity

This review of literature published in 2012 focuses on wastes related to chemicals and allied products. Topics covered include activated carbon adsorption, aerobic and anaerobic treatment, nutrient removal, nitrification and denitrification, membrane biological reactor, chemical waste, physio-chemical treatment, and soil remediation, and waste management.

https://www.jstor.org/stable/pdfplus/29763737.pdf

Chemicals and allied products

Phenol contaminated petroleum refinery wastewater presents a great threat on water resources safety. This study investigates the effect of microwave irradiation on removal of different concentrations of phenol in an attempt for petroleum refinery wastewater treatment. The obtained results show that the MW output power and irradiation time have a significant positive effect on the removal efficiency of phenol. The kinetic reaction is significantly affected by initial MW output power and initial phenol concentrations. Response surface methodology (RSM) was employed to optimize and study the interaction effects of process parameters: MW output power, irradiation time, salinity, pH, and H2O2 concentration using central composite design (CCD). From the CCD design matrix, a quadratic model was considered as an ultimate model (2 = 0.75) and its adequacy was justified through analysis of variance (ANOVA). The overall reaction rates were significantly enhanced in the combined MW/H2O2 system as proved by RSM. The optimum values for the design parameters of the MW/H2O2 process were evaluated giving predicted phenol removal percentage of 72.90% through RSM by differential approximation and were confirmed by experimental phenol removal of 75.70% in a batch experiment at optimum conditions of 439 W MW power, irradiation time of 24.22 min, salinity of 574 mg/L, pH 5.10, and initial H2O2 concentration of 10% (v/v).

/pdf/application-of-response-surface-methodology-to-enhance-2pic1o3k9h.pdf

Application of Response Surface Methodology to Enhance Phenol Removal from Refinery Wastewater by Microwave Process

Production water collected from the “Nafoora” oil water pit, located near the Gallo Oasis, Libya, was used for the screening of obligate hydrocarbonoclastic bacteria that can degrade crude oil. Bacterial strain NAF1 was isolated and characterized after enrichment on crude oil at pH 7 and 30 °C. Solid Waste Dates (SWD) and Corn Steep Liquor (CSL) were usedas to enhance biodegradation of crude oil. Strain NAF1 was able to utilize a number of aliphatic and aromatic hydrocarbons. During growth on natural products, high emulsifying activity in the presence of cells was also observed, which indicated the production of biosurfactant by strain NAF1. The new isolated strain NAF1 produced a yellow-green pigment. The bacterial strain showed removal efficiency of 91 and 97 % of crude oil in 28 days when cultivated with >0.5 % (w/v) of pretreated CSL and SWD, respectively. Alignment of the 16S rRNA gene sequences of NAF1 with sequences obtained by Basic local Alignment search tool (BLAST) search revealed 98 % similarity to P. aeruginosa PAO1. Therefore, the crude oil-metabolizing bacterium could secrete surfactants using agro-industrial products as substrates, which further enhanced hydrocarbon degradation.

Isolation and characterization of Pseudomonas sp. NAF1 and its application in biodegradation of crude oil

Current practice of solid waste management in malaysia and its disposal

Leachate generation from landfill is known as the main pollution source associated with municipal solid waste (MSW) This is because landfill leachate is a complex liquid which contains numerous biodegradable and non-biodegradable pollutants such as organic matter, phenols, ammonia nitrogen, phosphate, heavy metals, and sulfide If not properly treated and safely managed, landfill leachate may create environment hazard to surface and ground water as it can percolate throughout soils and subsoils, causing adverse impacts to receiving waters Pulau Burung Sanitary Landfill (PBSL) which is the only sanitary landfill in Penang Malaysia has been in operation since 1991 Until now, PBSL receives over 1800 tonnes of MSW and industrial wastes from island and mainland of Penang daily This paper evaluates current status of landfill leachate treatment research activities at PBSL At this point, various types of treatment methods have been proposed to alleviate the risks of untreated leachate However, some of the a

Hamidi Abdul Aziz

Papers

Chemicals and allied products

Application of Response Surface Methodology to Enhance Phenol Removal from Refinery Wastewater by Microwave Process

Isolation and characterization of Pseudomonas sp. NAF1 and its application in biodegradation of crude oil

Current practice of solid waste management in malaysia and its disposal

Current status of Pulau Burung Sanitary Landfill leachate treatment, Penang Malaysia