XN000022-1990-04-03 — Page 19

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TUESDAY, APRIL 3, 1990

ACCOMPANIED BY THE ACAF CHAIRMAN,

DIRECTOR OF

OFFICERS, THE

A

AGRICULTURE AND PARTY FIRST SPECIAL BEDDING

TO

FISHERIES DR LAWRENCE LEE, AND OTHER AFD INSPECTED THE PIG-ON-LITTER SYSTEM WHICH EMPLOYS MATERIAL IN THE PIG SHED COMPRISING SAWDUST AND BACTERIAL PRODUCTS DECOMPOSE PIG MANURE IN-SITU AS AND WHEN THEY ARE PRODUCED.

THE

ON

IT.

MEMBERS LEARNED THAT THE DEPARTMENT HAD BEEN EXPERIMENTING

JUNE 1987 SYSTEM SINCE

AND HAD RAISED SOME

PICS 1,400 CONSISTENTLY GOOD RESULTS WERE OBTAINED.

OUT OF THE FARM UNDER THE SYSTEM, NO EFFLUENT IS DISCHARGED

DECOMPOSITION OF THE AND BECAUSE OF THE RAPID AND COMPLETE

WASTES, THERE IS NO OFFENSIVE SMELL COMING FROM THE PIGSTIES.

HOOVES OF THE CONDITIONER FOR CROP

THE SAWDUST BEDDING IS GOOD FOR THE MOREOVER, ANIMALS WHILE THE SPENT COMPOST IS A GOOD SOIL CULTIVATION.

THE PARTY THEN

PROCEEDED TO

SEE TRIALS

BY UNDERTAKEN

THE

ENVIRONMENTAL PROTECTION DEPARTMENT AT THE CENTRE ON THE DRY MUCK-OUT AND THE WET MUCK-OUT SYSTEMS.

PHYSICAL REMOVAL OF AS

то FOR DELIVERY

PUBLIC FLOOR OF THE PENS IS THEN CHANNELLED TO A

THE DRY MUCK-OUT METHOD INVOLVES THE MUCH SOLID WASTES FROM THE FARM AS POSSIBLE COLLECTION POINTS FOR ULTIMATE DISPOSAL. THE WASHED WITH MINIMAL AMOUNT OF WATER, WHICH IS SOAKAWAY PIT AND DISPOSED OF THROUGH SOIL PERCOLATION.

ARE HOSED DOWN

WASTES UNDER THE WET MUCK-OUT METHOD, ANIMAL AND CONVEYED TO A TREATMENT SYSTEM WHERE THE SOLIDS ARE PARTIALLY

MEANS, LEAVING SEPARATED BY PHYSICAL

THE FLUID

ΤΟ PART BIOCHEMICAL DECOMPOSITION IN AN AERATION TANK.

THE LIQUID FRACTION IS THEN DISCHARGED INTO WATERCOURSES THE SEPARATED SOLIDS AND SLUDGE ACCUMULATED AT THE BOTTOM TANKS HAVE TO BE REMOVED AND DISPOSED OF THROUGH THE COLLECTION POINTS.

MEMBERS TAKING PART IN THE VISIT TODAY WERE THE HON

CHEUNG, STAN

MR LEUNG CHIK, MR YUNG TIN-TACK,

WONG, DR MOON-CHEUNG AND MR HO TAK-YAU.

UNDERGO

WHILE OF THE PUBLIC

ANDREW MR

SO

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