Liquid purification or separation – With means to add treating material – With distinct reactor tank – trough or compartment
Patent
1997-01-28
1998-07-21
McCarthy, Neil
Liquid purification or separation
With means to add treating material
With distinct reactor tank, trough or compartment
210143, 210220, C02F 1114
Patent
active
057830738
ABSTRACT:
A process and apparatus for treatment of sludge is provided. The process includes providing sludge in a substantially liquid form and an alkaline additive to a preferably substantially closed reactor vessel, mixing the sludge and additive to ensure said pH is greater than about 12, maintaining the pH for a predetermined period of time, optionally applying supplemental heat to the sludge mixture in the reactor vessel to a predetermined elevated temperature for a predetermined period of time, maintaining the sludge mixture in a substantially fluid liquid condition, and discharging the sludge and additive mixture from the reactor vessel in a substantially liquid form such that it lends itself to be handled by gravity flow. The apparatus provides means to accomplish the above process.
REFERENCES:
patent: 2297195 (1942-09-01), Behringer
patent: 2723954 (1955-11-01), Young
patent: 3793841 (1974-02-01), Dozsa
patent: 3960718 (1976-06-01), Lebo
patent: 4028240 (1977-06-01), Manchak
patent: 4043909 (1977-08-01), Endo et al.
patent: 4079003 (1978-03-01), Manchak
patent: 4190372 (1980-02-01), Takagi et al.
patent: 4270279 (1981-06-01), Roediger
patent: 4295972 (1981-10-01), Kamei
patent: 4306978 (1981-12-01), Wurtz
patent: 4369111 (1983-01-01), Roediger
patent: 4378886 (1983-04-01), Roediger
patent: 4443109 (1984-04-01), Watts
patent: 4460470 (1984-07-01), Reimann
patent: 4474479 (1984-10-01), Redelman
patent: 4478518 (1984-10-01), Tomyn
patent: 4514307 (1985-04-01), Chestnut et al.
patent: 4541986 (1985-09-01), Schwab et al.
patent: 4597872 (1986-07-01), Andersson et al.
patent: 4614587 (1986-09-01), Andersson et al.
patent: 4632759 (1986-12-01), Andersson et al.
patent: 4659471 (1987-04-01), Molin et al.
patent: 4659472 (1987-04-01), Nordlund et al.
patent: 4710032 (1987-12-01), Nordlund
patent: 4760650 (1988-08-01), Theilander et al.
patent: 4781842 (1988-11-01), Nicholson
patent: 4789477 (1988-12-01), Nordlund
patent: 4852269 (1989-08-01), Glorioso
patent: 4902431 (1990-02-01), Nicholson et al.
patent: 4981600 (1991-01-01), Tobler et al.
patent: 5013458 (1991-05-01), Christy, Sr. et al.
patent: 5083506 (1992-01-01), Horn et al.
patent: 5186840 (1993-02-01), Christy et al.
patent: 5229011 (1993-07-01), Christy, Sr. et al.
Lime Stabilization (Unknown orgin).
Wallace & Tiernan, Paste-Type Lime Slacking Systems, Sep. 1989.
Getting, Wurtz & King, Carbon Dioxide Addition to Alkaline Stabilized Biosolids.
EPA Process Design Manual For Sludge Treatment and Disposal, Sep., 1979.
Gettings, Wurtz and King, Carbon Dioxide Addition to Alkaline Stabilized Biosolids.
EPA Environment Regulations and Technology, Control of Pathogens and Vector Attractiveness in Sewage Sludge, EPA/625,R-92/013, Dec., 1992.
Christensen, Lime Stabilization of Wastewater Sludge-An Assessment, Mar., 1981.
Christensen & Westphal, Lime Stabilization: Effectiveness of Two Process Modifications, Jun., 1982.
Christy Sr., Treatment Processes Sludge Disposal Using Lime.
Christy Sr., Process Equipment Considerations for Lime Stabilization Systems Producing PSR and PFR Quality Sludge.
Christy Paul G.
Christy Richard W.
McCarthy Neil
RDP Company
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