A BNR facility is designed for a flow of 8500 m-/d. The influent TP is 5.5 mg/L, and required effluent TP concentration is less than 1 mg/L. The BOD3 in influent is 150 mg/L, and the ratio of BOD5/COD is 0.48. Calculate the achievable TP in the effluent and minimum volume of the anaerobic zone. Assume TSS in effluent is 10 mg/L or less, the TVSS/TSS ratio is 0.8, and the representative chemical formula for the VSS portion of biomass is C60H87023N12P.

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?