PMID- 2209262
OWN - NLM
STAT- MEDLINE
DCOM- 19901119
LR  - 20131121
IS  - 0253-9624 (Print)
IS  - 0253-9624 (Linking)
VI  - 24
IP  - 4
DP  - 1990 Jul
TI  - [A methodological study on treatment of hospital sewage].
PG  - 199-202
AB  - With the view to finding a more effective and economic system for the disposal of 
      hospital sewage, a series of experimental and on the spot investigations were 
      conducted. The results are as follows. Disinfection must be taken as the key link 
      in the treatment of hospital sewage. After primary treatment and chlorination, 
      when the product value of concentration (mg/L) multiplied by time (min.) achieved 
      to 240 (general hospital) and 540 (tuberculosis hospital), the content of 
      suspended substances (SS) fell to 37 mg/L; the clearance rate of SS reached 82%. 
      The BOD5 fell to 35 mg/L a drop to 42%. E. coli was less than 9 individual/L, the 
      killing rate reached 99.999 99%. The intestinal pathogens and tubercle bacillus 
      were completely wiped out. The sludge from the sewage can be treated with lime 
      [Ca(OH)2] and when the pH value rose to 12, the requirement of disinfection was 
      satisfied and both the sludge and sewage can be drained. The aeration of sewage 
      through shooting flow, biological oxidation combined with sediment action by 
      passing thru reclining tubes is an effective way for the secondary treatment of 
      hospital sewage. In addition, we developed the double siphon equipment with water 
      power-automatic controller, the WD-700 flowmeter, the anti-corrosive paint 
      coating the contact pond; according to test parameters, we designed a simplified 
      evaluation graph for the purpose of surveillance.
FAU - Zhou, Y L
AU  - Zhou YL
AD  - Military Medical Institute, Shenyang.
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Zhonghua Yu Fang Yi Xue Za Zhi
JT  - Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]
JID - 7904962
RN  - 0 (Sewage)
RN  - 4R7X1O2820 (Chlorine)
SB  - IM
MH  - Chlorine
MH  - *Disinfection
MH  - Hospitals
MH  - Methods
MH  - *Sewage
EDAT- 1990/07/01 00:00
MHDA- 1990/07/01 00:01
CRDT- 1990/07/01 00:00
PHST- 1990/07/01 00:00 [pubmed]
PHST- 1990/07/01 00:01 [medline]
PHST- 1990/07/01 00:00 [entrez]
PST - ppublish
SO  - Zhonghua Yu Fang Yi Xue Za Zhi. 1990 Jul;24(4):199-202.