PAF SEWAGE RECYCLERS
The disposal of human and animal sewage is one of the biggest environmental problems of modern societies. Insufficient treatment of sewage has lead to serious health hazards such as: ecoli outbreaks; damage to agricultural products; aquifer pollution; contamination of drinking water; costal degradation; and damage to marine life.
It should be kept in mind that the release of highly infectious substances in the environment is a violation of the law. Hence, the primary function of the Plasma Arc FlowTM Sewage Recyclers in Sterilization Mode, is the complete sterilization of sewage via its passage through a submerged electric arc, while jointly producing the clean burning syngas fuel.
The recyclers operate in the so-called Linear Mode referred to the single passage of the sewage through the entire equipment. As a consequence, there is no appreciable increase of sewage temperature, and Plasma Arc Flow Sewage Recyclers do not produce heat. Also, Plasma Arc Flow Sewage Recyclers do not produce electricity, but use electricity in a very efficient way to sterilize sewage and turn it into usable waters while producing a fuel. Self-sufficiency in the needed electricity can be achieved by the complementary EAWC Technologies while making the waste management package.
Once sewage is sterilized with the arc, there are several commercially available technologies for the removal of the carbonized solids in suspension and the depuration of the final effluent water as requested by local environmental authorities, by using a small floor area as compared to the several acres needed for a conventional sewage treatment plant, with distinct environmental, logistic and financial advantages.
Plasma Arc Flow Recyclers of various types and powers can recycle city, farm, ship, industrial, military and other sewage into:
- Sterilized and filtered final effluent waters consisting of about 97% of the original sewage volume, which waters are excellent for irrigation;
- Syngas usable for all fuel purposes; and
- Carbonized precipitates corresponding to about 1% of the original sewage used for the production of electrodes or other uses. The Plasma Arc Flow treatment releases no appreciable odor because it is completely enclosed and the arc terminates all bacteriological activities. The sole noise produced is that of AC-DC converters and pumps.
Conventional sewage treatment plants require a large and expensive pipe network and the pumping of all the sewage to a centralized area. By comparison, Plasma Arc Flow Sewage Recyclers can be placed locally where irrigation waters are needed, for instance, near a park. Similarly, the sewage of a new village can be processed locally with a Plasma Arc Flow Sewage Recycler resulting in the production of sterilized and filtered irrigation waters and the Syngas Fuel, thus avoiding miles of underground pipes for connection to the central plant. Besides the availability of irrigation waters and a fuel, the financial advantages are evident from the elimination of the high cost of connecting a new village to a centralized treatment plant.
Municipalities for use either at the central plant to decrease the bacteriological count when over legal limits or locally where irrigation waters are needed; new villages to prevent the expensive hook-up to the central recycling plant while having irrigation waters and a clean burning fuel; civilian and military ships since the recyclers can process on board the ship waste waters, thus avoiding their dumping in open oceans with damage to marine life or expensive disposal methods; beach-front hotels so as to avoid the use of prime land for the partial treatment of local sewage, while having in generally remote areas precious irrigation waters and a clean burning fuel for cooking and other uses.
The typical chemical analysis conducted with a locally available sewage prior to delivery of the Plasma Arc Flow Recyclers. The top view shows the data of the raw sewage:
CBOD 600 mg/l; TSS 68 mg/l; nitrates less than 0.25 mg/l (at the limit of detection by the used instrument); fecal coliforms TNTC (beyond measurement; and Total Phosphorus 1.07 mg/l
The bottom analysis shows the same wastewater following treatment with the 100 Kw Pilot Plasma Arc Flow Sewage Recycler with data:
CBOD 10.2 mg/l; TSS 5 mg/l; nitrates less than 0.85 mg/l (at the limit of detection by the used instrument); fecal coliforms less than 100 colonies (non detectable)t; and Total Phosphorus 0.32 mg/l
The above data were obtained with the use of two sand filters for the removal of carbonized biomasses in suspension and two charcoal activated filters for the treatment of contaminants in solution. The achievement of better purity in the final effluent waters can be achieved in a variety of way as desired with the use of bigger charcoal activated filters, electro coagulation and other means, all the way to drinking quality via the use of the reverse osmosis.