Activated Sludge Design: process_design_vol_loading

Activated sludge process design data from Metcalf & Eddy 5th Ed. — biokinetic coefficients (mu_max, Ks, Y, b, fd, Kn) and Arrhenius theta correction factors for COD oxidation, nitritation (Nitrosomonas), and nitratation (Nitrobacter); minimum SRT ranges by treatment goal; activated sludge process design parameters (SRT, F/M, volumetric loading, MLSS, HRT) for 11 process variants including conventional plug flow, complete mix, extended aeration, oxidation ditch, SBR, and high-purity oxygen; SDNR denitrification coefficients (b_0, b_1) vs. rbCOD percentage; secondary clarifier design criteria (surface overflow rate, solids loading, side-water depth) for air-activated sludge, extended aeration, BNR, and chemical P removal; MBR membrane flux vs. temperature (low and high MLSS); MBR manufacturer membrane product specs (GE Zenon, Kubota, Mitsubishi, Siemens, Huber); BNR process design parameters for A/O, A2/O, Modified Bardenpho, UCT, VIP, SBR, and Phostrip; biological P removal substrate ratios (VFA:P, rbCOD:P, BOD:P, COD:P); aerobic and anoxic selector zone F/M and O2 transfer design criteria; and typical domestic wastewater influent characterization