One, medical wastewater treatment belongs to the wastewater with a mature treatment process, you can refer to the national 03 years out of the "Hospital Wastewater Treatment Technical Guidelines", which has a very detailed guidance.
Second, the specific treatment process needs to be determined according to your water in and out of the situation, so large hospitals are generally built in the city center location, if the surrounding municipal sewage network, then your sewage treatment station as long as the water into the network standards can be, the treatment process will be greatly simplified. If there is no municipal sewage network, then your effluent to meet the "standard for the discharge of water pollutants in medical institutions" GB18466-2005 in the relevant provisions of the treatment process links and investment should be increased.
Third, in any case, for the medical wastewater of large general hospitals there are two points worth noting, first of all, the wastewater must ultimately be disinfected before discharge; and secondly, wastewater containing cyanide, chromium, and other class of pollutants (a class of pollutants can be found in GB8978-1996) need to be individually processed to meet the relevant national limits and then with the inpatient department, cafeteria, outpatient clinic and other parts of the The wastewater discharged from the inpatient department, cafeteria, outpatient clinic and other parts of the mixed treatment.
Also, you mentioned 1000 beds, 450,000 tons / a of water may be debatable, according to the number of beds you provide, the daily discharge of water should be about 600 tons. If there is any need to communicate please add my QQ16365663, please explain the intention.