Biological Waste Treatment and Pollution Control
5352340
A biological waste treatment assembly used between a septic tank and a drain field. There is an upper chamber containing a trickle media bed for aerobic treatment of the effluent, and a sump positioned beneath this. The fresh effluent from the septic tank drains into the sump, and is drawn from this and pumped upwardly through a conduit by a submersible pump. Compressed air is introduced at the base of the conduit so as to aerate the effluent. The conduit is formed of UVtransparent tubing, and this is helically coiled around an ultravit>let light source which serves to destroy fecal coiliform bacteria in the effluent. The effluent is then discharged via a spray nozzle onto the upper surface of the aerobic treatment bed, and migrates downwardly through this to a collection pan. A down tube drains the collected effluent directly to a relatively oxygen-free layer in the sump, where secondary anaerobic treatment serves to deniuify the products of the aerobic treatment in the upper chamber.
APPARATUS AND METHOD FOR CONVERSION OF CELLULOSIC AGRICULTURAL WASTES Sweeney Charles Lubbock, "IX, 79423, UNITED STATES A method for conversion of comminuted cellulosic agricultural wastes into a form edible by ruminant animals comprises treating such wastes, e.g., suaw, corn stalks and husks, cotton wastes, peanut shells, saw dust, grains (corn, sorghum), etc. by treating with an aqueous solution of a mixed oxidant gas, at a pH of about 7-9, to produce a total water content of less than 20%, a pH of about 7.5-8.3, and NaOH content of less than 5.0% in the waste. The mixed-oxidant gas is produced by a novel electrolytic cell having an anode compartment, cathode compartment and membrane separating the c o ~ e n t s to permit a limited flow of electrolyte therebetween. The anode compartment contains a plurality of anodes and bi-polar electrodes supported in a substantially co-planar relation spaced laterally from each other. The anodes are electrically connected and the bi-polar electrodes are insulated therefrom. An alternate embodiment uses a triple anode comprising a titanium sheet having a coating of the type used on chlorine-producing anodes and flat titanium mesh sheets having a coating of the type used on oxygen-producing anodes on opposite sides thereof supported by insulated spacers. A salt solution electrolyzed in this cell produces the above-mentioned mixed oxidant gas which when absorbed in alkaline solution forms a mixture of oxidant species. The treated product obtained is a satisfactory feed for ruminant animals, being non-toxic and digestible.
~5~58 SEQUENCING BATCH LIQUID TREATMENT Wang Lawrence; Kurylko Lubomy; Wang Mu H S Latham, NY, UNITED STATES Assigned to International Environmental Systems Inc USA A sequencing batch apparatus being manually or automatically operated for treating a contaminated water is described. The present invention specifically relates to the apparatus comprising an inlet pipe, a batch reactor, a chemical feeder means, at least one mixing means, a coarse bubble distribution means, a fine bobble distribution means, a liquid discharge means, and sludge discharge means for required liquid treatment, and further alternatively comprising a gas moving means, a gas pipe, a flow meter, an enclosure and a gas purification means for air emission control upon demand. The present invention further relates to an apparatus system comprising means for recovering precious metal, controlling
5352357 WASTE WATER TREATMENT SYSTEM Perry Cliff R Federal Way, WA, 98003, UNITED STATES 829