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WATER & MATERIAL BALANCE FOR 200TPD M/C PRODUCTION- 186M T FINISHED PRODUCTION

(NO DE-INKING- NO BLEACHING)

M/C running at the rate of 220T/day

M/C production from ope reel 200T/day

finishing loss 7.0%

finished production 186.0T

FURNISH

Imported/ Indian unprinted waste paper pulp 161.8 T

Soft wood pulp - 9.32T

(10% SSP is to add) Added ash - 9.32T

Moisture in paper - 7.44T

Wate paper yield 85%( without di-inking without bleaching)

Waste paper required for 161.8 T BD pulp- 190.4T BD

PULP MILL DILUTION WATER

In paper -52.66 m3Poir - 144.84m3

Poir dump chest pump - 119m3

Hole screen (before HD cleaner) - 79.3m3

Cntricleaner dilution -398m3

Total B/W from pulp to pre-screen - 793.8m3

DISC FILTER

DISC FILTER INLET OF 1% VOLUME - 793.8M3

OUTLET OF 10% - 79.38M3

Water removed by disc filter - 714.4m3

15% solid is washed off in disc filter/ screening & cleaningDilution water required in presions system -793.8m3

Dilution water available -714.4m3

Balance water as make up will come from M/C back water -79.4m3

PAPER M/C WATER BALANCE

Total tubewell water available-2000m3/day

Water requirement other then paper m/c- 105m3/day

Available water for paper M/C -1895m3/day

105m3/day detail

Stock preparation -15m3

Dye preparation -15m3

Cooling for pope reel & hydraulic power pack -50m3

Drinking & other use -25m3

NOTE:- stock & dye preparation water will come in system ie on M/C B/W system- 30m3

Cooling water also may be taken in system- 50m3

Total water coming in system 1895+80m3- 1975m3/day

MASS INLET TO HEAD BOX 220T/DAY

Additional ash 5% for that 10% soap stone to add considering 50% retention.

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Additional ash 5%-11T

So water with SSP- 4.6m3/HR

Water with pulp- 248.79m3/Hr

Slower water 78.95m3/Hr

With cooling etc. - 3.34m3/Hr

Water out going with web after press with 220T paper considering 5% is waste at couch/press 95% mass

going after press.

Ie 95% of 9166kg/Hr - 8707.7 solid

Water removed by wire & press part

Total water added- 335.68m3

Water entering to dryer-13.12m3

Excess water from wire/press- 322.52 m3/Hr

MACHINE B/S (WATER) RECYCLING

UTM+COUCH PIT -23.2M3/HR

HD TOWER DILUTION- 125.19 M3/HR

BROKE PULPER

16.6M3/HRWOOD PULP -08.35M3/HR

TOTAL -173.85 M3/HR

TOTAL WATER EXCESS FROM PM/C -322.52M3

Total B/water use (Makeup water) to pulp mill+dilution water in M/C at diff. point -79.4m3+173.85m3

Net excess water- excess water from M/C wire / press -322.7

Water re use - 253.25m3

Net excess water -69.45m3/hr

Fresh water used -82.29 m3/hr

Water going after press- 13.12m3/hr

Balance water- 6945m3/hr

MATERIAL BALANCE

BD waste paper processed-190.4T

Reject from centicleaner-1.2%-2.3T/Day

Screen -1.3%- 2.4T/Day

Total -4.7T/day

Solid mass forwarded after slot screen -190.4-4.7=185.7 T/day

Solid removed by disc filter-185.7-161.8=23.9 T/day

Solid removed from soap stone

Total added soap stone-916.6 kgs.

Retained ash -458.3

Removed -458.3 kg/hr

WATER CONSUMPTION IN UNIT-I

As per charter-60m3/hr (effluent discharge)

Additional max-15%-60+9=69m3/hr fresh water

For 150T-10350m3/Day

Percentage divided in plant

Paper M/C-30%=3105m3/day

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Pulp mill-50%=5175m3/day

Auxiliary-15%=1550m3/day

Misc.-5%=520m3/day

Total =10350m3/day