bids are invited for resin for strong - 1.flow rate ( s ) : ( a ) normal: 75 m3 / hr ( b ) max.:75.64 m3 / hr ( c ) backwash: 18.8 m3 / hr ( d ) regeneration:9.2 m3 / hr ( e ) slow rinse: 7.7m3 / hr ( f ) fast rinse: 75 m3 / hr 2. head loss through bed, ( in mmwc ) ( a ) normal:5-6 ( b ) max.:8 ( c ) backwash:5-6 ( d ) regeneration:5-6 ( e ) slow rinse:5-6 ( f ) fast rinse:5-6 3.regeneration medium: naoh ( 45-48%concentration ) 4.strength of hcl during injection:5% the resin should have following characteristics: type: strong base anion exchange resin matrix structure: polystyrene copolymer functional group: quaternary ammonium type 1 physical form : moist spherical beads ionic form: chloride screen size uss ( wet ) : 16 to 50 particle size ( 95% min. ) : 0.3 to 1.2 mm total exchange capacity: 1.25 meq / ml ( min ) moisture content : 53+ / -3% ash content : 0.1 max. swelling ( approx ) : cl- to oh- 25% backwash settled density: 670 to 710 g / l thremal stability: 80 deg.cel. operating ph range: 0 to 14 solubility: insoluble in all common solve