• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to methods of treating wastewater from organic and mineral impurities, in particular sulphides, sulphates and chlorides, by thermo-oxidative decontamination and prevents the formation of salt deposits on the walls of the reactor. The method includes dispersing waste water by axially introducing a gas generator into the contact reactor into a dilution zone of a turbulent gas flow preheated to 600-1200 ° C, thermal-oxidative treatment, and immediately before fixation the waste water is subjected to hydrochloric acid treatment, which is introduced along the axis of the turbulent gas flow. 1 hp f-ly.
    公开号:SU1477246A3
    申请号:SU813337453
    申请日:1981-09-23
    公开日:1989-04-30
    发明作者:Прюдон Франсуа；Сиклюна Огюстэн
    申请人:Рон-Пуленк Эндюстри (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to methods of treating wastewater from organic and mineral impurities, in particular sulphides, sulphates, chlorides, and thermo-oxidative neutralization.
    The purpose of the invention is to prevent the formation of salt deposits on the walls of the reactor.
    Example. Sewage water containing organic impurities, for example, traces of oils and a spirit lamp, mineral impurities in the form of chlorides, sulfides and polysulfides (dry matter content) is dispersed by axially introducing them into the contact reactor of the gas generator in the form of a dilution of a turbulent gas flow, previously
    heated to 600-1200 ° C, and subjected to thermo-oxidative treatment.
    Immediately before dispersion, the waste water is treated with hydrochloric acid in an amount of 5% of the concentration of mineral impurities in the water to a pH of 9 in the case of the presence of sulfides or polysulfides in the water. For treatment of wastewater, hydrochloric acid is introduced into the fsvuy of the gasifier underpressure through a separate pipeline, as well as along the axis of the turbulent gas flow. Co-pulverization of the treated wastewater and hydrochloric acid before heat treatment in the gas phase occurs in the rarefaction zone. time less than 1 s. Gas flow rates
    1 h y
    s
    and liquids and temperatures are determined by D depending on the nature of the wastewater being treated.
    The power of the gas generator being used is 20,000 kg / h of air. The air pressure at the generator inlet is 0, Pa, the wastewater supply pressure is 0.6-10 e Pa, the pressure is HC1, 10 Pa, the generator temperature is 850 ° C and the contact chamber temperature is 450 ° C.
    As a result of thermo-oxidative treatment of wastewater, organic impurities contained in them burn, and mineral impurities in the form of white powder (composition 90% NaCl, I0% sulfates and traces of sulfite) are collected at the outlet of the installation.
    On the walls of the contact reactor, unlike the prototype, no traces of sticking are observed, i.e. the formation of deposits of mineral salts on the walls of the reactor is completely prevented.
    权利要求:
    Claims (2)
    [1]
    1. A method for purifying wastewater from organic and mineral impurities, dispersing dispersion of wastewater by axially introducing it into
    contact reactor — a dilution zone of a preheated turbulent gas flow; thermal oxidation treatment; I distinguish that, in order to prevent the formation of salt deposits on the walls of the reactor, immediately before dispersing, the waste water is treated with hydrochloric acid.
    0
    [2]
    2. The method according to p. I. This is due to the fact that the hydrochloric acid is introduced into the rarefaction zone along the axis of the turbulent gas flow.
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    同族专利:
    公开号 | 公开日
    CA1176034A|1984-10-16|
    JPS6319232B2|1988-04-21|
    EP0048664A1|1982-03-31|
    EP0048664B1|1984-07-25|
    JPS5784787A|1982-05-27|
    DE3165080D1|1984-08-30|
    US4447331A|1984-05-08|
    AT8609T|1984-08-15|
    DK420981A|1982-03-25|
    FR2490619A1|1982-03-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3177634A|1962-05-21|1965-04-13|Continental Carbon Co|Apparatus for the recovery of solids from gases|
    CH555298A|1972-09-18|1974-10-31|Mitsui Toatsu Chemicals|METHOD AND DEVICE FOR THE TREATMENT OF WASTEWATER CONTAINING CYANIDE.|
    JPS5127946B2|1972-09-18|1976-08-16|
    US3897007A|1973-09-10|1975-07-29|Joseph G Roy|Apparatus for atomizing liquid fuels for the combustion process|
    FR2276086B1|1974-06-28|1980-08-29|Rhone Poulenc Ind|
    US4058433A|1975-03-06|1977-11-15|Gulf States Paper Corporation|Conversion of sulfur in blank liquor to eliminate odorous emissions and facilitate the collection of sulfate soaps|
    DE2523973A1|1975-05-30|1976-12-16|Luwa Ag|PROCESS FOR THE PROCESSING OF WASTEWATER, IN PARTICULAR WASTE CONTAINING TOXIC SALES AND EQUIPMENT FOR CARRYING OUT THE PROCESS|
    US4076621A|1976-03-15|1978-02-28|Air Resources, Inc.|Chelate oxidation of hydrogen sulfide in sour water|
    FR2406610B3|1977-10-20|1980-07-11|Rhone Poulenc Ind|
    US4123355A|1977-11-21|1978-10-31|Nasa|Simultaneous treatment of SO2 containing stack gases and waste water|
    FR2431321B1|1978-07-21|1981-03-20|Rhone Poulenc Ind|FR2257326B1|1973-06-19|1976-05-28|Rhone Progil|
    FR2551183B1|1983-05-20|1988-05-13|Rhone Poulenc Chim Base|OWN COMBUSTION PROCESS AND DEVICE APPLICABLE IN PARTICULAR TO THE BURNING OF HEAVY FUELS|
    FR2546077B1|1983-05-20|1988-05-06|Rhone Poulenc Chim Base|HIGH TEMPERATURE REACTION DEVICE|
    FR2592321A1|1986-01-02|1987-07-03|Rhone Poulenc Chim Base|PROCESS FOR OBTAINING A HIGH TEMPERATURE GASEOUS PHASE, AND DEVICE FOR CARRYING OUT THIS PROCESS. APPLICATION TO THE TREATMENT OF LIQUID OR GASEOUS PHASES, WITH OR WITHOUT SOLIDS, AND SPRAY SOLIDS.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8020464A|FR2490619A1|1980-09-24|1980-09-24|PROCESS FOR TREATING LIQUID MATERIAL CONDUCTING SOLID WASTE BY ACTION OF A FLUID PHASE AND AT LEAST ONE GAS PHASE|
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