18
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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