Abstract This study aimed to enhance the removal of phosphate in synthetic rural sewage by using a continuous electrocoagulation (EC) combined with biofilm process an integrated system. Characteristic indexes effluent covering pH, dissolved oxygen (DO), suspended solids (SS), chemical demand (COD) and maintained narrow fluctuation range tended not readily influence subsequent electrocoagulation...

Black band disease (BBD) is a pathogenic, sulfide-rich microbial mat dominated by filamentous cyanobacteria that infect corals worldwide. We isolated cyanobacteria from BBD into culture, confirmed their presence in the BBD community by using denaturing gradient gel electrophoresis (DGGE), and demonstrated their ecological significance in terms of physiological sulfide tolerance and photosynthes...

Black band disease (BBD) is a cyanobacterial-dominated polymicrobial mat that propagates on and migrates across coral surfaces, necrotizing coral tissue. Culture-based laboratory studies have investigated cyanobacteria and heterotrophic bacteria isolated from BBD, but the metabolic potential of various BBD microbial community members and interactions between them remain poorly understood. Here ...

Endophytic fungi inside a plant can degrade portion of lignin and cellulose. Penicillium is one the industrial microorganisms with advantage producing enzymes complete enzyme system that be secreted into extracellular space. The natural evolution ancient tree species from special geographic environments to screen out cellulase-producing strains excellent characteristics provides promising direc...

We often use the plastics daily, containing of polyethylene plastic polymers which recently can be utilized as additional material for road pavements. Several studies have attempted to find optimum proportion an asphalt mixture using modified Asbuton is local bitumen abundantly deposited in Buton Island Indonesia, added with waste. The influenced by many factors, such interactions component mix...

To determine the optimal fertilizer discharging performance, a spiral applicator was designed according to orchard agricultural requirements. The influence of different parameter combinations speed, blade diameter, and pitch on coefficient variation (CV) discharge uniformity predicted using neural-network-based model by Box–Behnken design (BBD) test. According extracted results, neural network ...

In this study, the optimization of microwave-assisted alkaline (MAA) pretreatment is performed to attain optimal operating parameters for delignification cocoa pod husk (CPH). The MAA performance was examined by heating CPH solid with different particle sizes (60–120 mesh) and NaOH solution a sample solvent (SS) ratio (0.02–0.05 g/L), short irradiation time (1–4 min). Box-Behnken Design (BBD) u...

densification of biomass material that usually has a low density is proper way to increasing density,reduce transportation cost and simplify storage and distribution of these materials. pellet productionusing extrusion process is a common method for densification. the goal of this research isoptimization of specific energy consumption for extrusion process considering its effect on pelletdensit...

BACKGROUND The risk of invasive breast cancer associated with benign breast disease (BBD) other than atypical hyperplasia and in situ breast cancer, especially with nonproliferative diagnosis, has not been explored extensively. This report evaluates the risk of breast cancer associated with this lower-category BBD (LC-BBD). METHODS 11 307 women without prior history of atypical hyperplasia or...

Box and Behnken (1960) constructed 10 three-level, second-order designs, while their 1958 technical report contained seven additional designs. This series of designs is based on combining 2 or 2 designs in different subsets of the t factors, with k < t. The subsets of size k were determined using balanced (or partially balanced) incomplete block designs. This present article offers additional B...