Immobilized enzyme was assayed at 40°C for 8 min and washed three times using solution B. Repeat this process for 10 times and read the OD value of mixtures at 410 nm by spectrophotometer.
Moreover optimization was done using response optimizer part of Minitab software and the values of target and allowable minimum responses were defined for the software and finally it calculated the maximum achievable values for both of the responses and also corresponding coded values of mixture components.
According to Carreira-Perpiran and Renals, and Tikka et al. [ 16, 20], the initial values of parameters θ ji, j = 1,..., J, i = 1,..., d were selected randomly from range 0.25 0.75 and the initial values of mixture proportions were π j = 1/ J.
After 3 min of stirring, the absorption values of mixtures measured at 500 nm were taken as peroxide contents.
In this study, we define the relationship between the FAS values of mixtures and their energy consumption in the composting process.
The experimental results showed that smaller inside diameters of capillary tube, lower concentrations of pigment solution, lower densities but higher than the critical values of mixtures of carbon dioxide + DMSO are favorable to produce smaller particles for pigment red 177.
It is possible to prepare concrete mixtures containing both SCM and RAP as slump flow values of mixtures were above the minimum limits of SCC.
Experimental methane yields were always higher than the BMP values of mixtures calculated from the BMP of each substrate, highlighting the importance of endogenous production (methane produced from auto-degradation of microbial community and generated solids).
For instance, the maximum fracture energy of mixtures produced with binder A60 were 3197.8 and 2599.1 J/m2 at 10 and 30 °C, respectively, while the corresponding values of mixtures produced with binder B80 were 5112 and 1725.9 J/m2 at 10 and 30 °C, respectively.
Compared to the requirement of porosity lower than 12%% according to DVGW W 300 (DVGW Arbeitsblatt W 2005), the porosity values of mixtures M1 M3 are acceptable, while the Indonesian reference mixture Ref 2 had a higher porosity of 16.3%% due to its higher water/cement-ratio.
