Method of treating wastes, mainly of drilling muds
专利摘要:
公开号:SU743584A3 申请号:SU792744198 申请日:1979-03-29 公开日:1980-06-25 发明作者:Пшибыла Хэльэна 申请人:Осродек Бадавчо-Розвоевы Техники Гэолегичнэй (Инофирма); IPC主号:
专利说明:
The invention relates to methods for processing waste mainly drilling fluids. A known method of treating waste products, for example, of the woodworking industry 5, by introducing with stirring a mineral substance (kaolin, alumina) followed by curing with a binder, the binder acting as a mixture of tar glue, cardboard waste (60% wood fiber) and kaolin and alumina (1]. This method does not neutralize the toxic components of drilling fluids. The aim of the invention is to increase the efficiency of the method for the neutralization of waste drilling fluids 20 by neutralizing their toxic components. This is achieved by the addition of adsorbent diatomite, activated carbon, alumina 25 • or infusorized soil in an amount of 0.05-3 wt.% To the weight of the liquid phase, and coagulant-Ca (0H) 2 or / and FeSOz / '7НдО, or А1 2 (SChJj + Ca (0Н-) 2 in the amount of 36–15 wt.% to the weight of the liquid phase And: flocculant - 4% aqueous solution of polyacrylamide in the amount of 1 -5 vol.% Relative to the liquid phase, moreover, fly ash is used as a mineral in an amount of 1-35 wt.% By weight of the liquid phase, and gypsum is used as a binder and / and liquid glass, or / and cement, and / or urea resin in an amount of 0.5-10 wt.% to the weight of the liquid phase. Fly ash contains up to 25% ALjOj and up to 48% CaO. Depending on the geological and technical conditions of the boreholes, drilling fluids are used containing various additives, including nickel, chromium, lead, iron, sulfides, chlorides, oils,. phenols and lubricants. These toxic constituents of drilling mud waste contaminate the soil, as well as groundwater. The proposed method, in addition to the complete adsorption of toxic waste constituents, also provides easy removal of the consolidated mass and restoration of the initial state of the territory. 743534 Example 1. Into mixed drilling mud waste with a density of 1.49 g / cm 3 and pH 9.5, consisting of a solid phase in an amount of 22% by weight, water in an amount of 74% by weight and oil in an amount of 4% by weight, and also containing 82.5 mg / l of chromium and 17.2 g / l of iron, with a constant amount of 5.5%, as well as a flocculant 4% aqueous solution of polyacrylamide in an amount of 3.3%. Binding and adsorption last 2 days. Under stirring, a mineral substance (filler) is introduced in the form of fly ash. In an amount of 6.8 wt.%, a coagulant, which is lime - fluff, in an amount of 1.4 wt.%, a flocculant, which is a 4% aqueous solution of polyacrylamide in an amount of 3% by volume relative to the liquid phase, as well as a binder - cement in an amount of 1.3% and liquid glass in an amount of 2.7% by weight relative to the liquid phase. Binding and adsorption occur after 72 hours. PRI me R 2. Into the mixed drilling mud waste J 3 = 1.17 g / cm 3 and pH 9.2, consisting of 15% solid phase, 83% water and 2% oil, and containing 250 mg / l of phenols, 20 mg / l of chromium, 50 mg / l of lead and 10 mg / l of iron, with constant stirring, the filler is introduced in the form of fly ash in an amount of 4%, an aqueous solution of polyacrylamide - 3.2% by volume Relatively liquid phase and a binder in the form of liquid glass in an amount of 5 wt.%. Binding and adsorption last 14 days. Example 3. In the mixed drilling mud waste /> = 1.17 g / cm 3 and a pH of 9.2, consisting of 9% solid phase, 90% water and 1% oil, and also containing 0.33 mg / l of phenols, 33.3 mg / l of chromium and 10 mg / l of iron, fly ash (22%), coagulant-lime fluff in the amount of 0.6%, a binder in the form of building gypsum are introduced with constant stirring
权利要求:
Claims (2) [1] Ave.-And measures 1. In the mixed waste mud with a density of 1.49 g / cm and a pH of 9.5, consisting of a solid phase in the amount of 22% by weight of water in the amount of 74% by weight and oil in the amount of 4% by the weight, as well as containing in its composition 82.5 mg / l of chromium and 17.2 g / l of iron, with constant stirring, the mineral substance (filler) in the form of fly ash is introduced in an amount of 6.8 wt.%, coagulant, which is lime-fluff, in an amount of 1.4 wt.%, f okul nt, which is a 4% aqueous solution of polyacrylamide in an amount of 3% by volume relative to livestock. Coy phase and binder - cement in an amount of 1.3% and water glass in an amount of 2.7% by weight relative to the liquid phase. Binding and adsorption occur after 72 hours. EXAMPLE 2: Mixed drilling mud waste J 1.17 g / s and pH 9.2, consisting of 15% solids, 83% WATER and 2 % of oil, and containing in its composition 250 mg / l of phenols, 20 mg / l of chromium, 50 mg / l of lead and 10 mg / l of iron, with constant stirring, the filler in the form of fly ash is added in an amount of 4%, water. polyacrylamide solution - 3.2% by volume relative to the liquid phase and a binder in the form of liquid glass in an amount of 5% by weight. Binding and adsorption continue for 14 days. Example 3. Mixed drilling mud waste / 5 i, i7 g / cm and pH 9.2, consisting of 9% solids, 90 "water and 1% oil, and also contains 0.33 mg / l phenols, 33.3 mg / l of chromium and 10 mg / l of iron, with constant stirring, volatile ash (22%) is added, coagulant lime powder in the amount of 0.6%, binding in the form of gypsum s of 5 , 5%, as well as flocculus nt4% aqueous solution of polyacrylamide in the amount of 3.3%. Binding and adsorption continue for 2 days. 1. The method of treating waste mainly drilling muds by injecting mineral matter with mixing and subsequent curing with a binder, is different from the fact that, in order to increase the efficiency of the process during the disposal of waste drilling muds by neutralizing their toxic components, additionally t adsorbentanate diatomite, activated carbon, alumina oxide or infusorial earth in an amount of 0.05-3 wt.% to the weight of the liquid phase, and before the introduction of the binder, coagulant lime-pusho is introduced ku and / or ferric sulphate of iron or aluminum sulphate together with limestone in the amount of 0.2-15 wt.% to the liquid phase cake and flocculant 4% polyacrylamide aqueous solution in the amount of 1-5% by volume relative to the liquid phase, and volatile ash in the amount of 1-35 wt.% by weight of the liquid phase is used as a mineral substance, and gypsum or / and liquid glass, or / and cement, or / and urea resin in an amount of 0.510 wt.% to weight of the liquid phase. [2] 2. The method according to claim 1, wherein the fly ash contains up to 25% alumina and up to 48% calcium oxide. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 159013, cl. B 29 J 5/02, 19-63.
类似技术:
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同族专利:
公开号 | 公开日 PL124516B1|1983-01-31| PL205681A1|1979-11-19| DD142656A5|1980-07-09| RO76548A|1982-04-12|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 CN1294228C|2004-05-20|2007-01-10|杨君|Oil-sludge sand pulverizing agent and method for treating oil-sludge sand by using same| CN107021716A|2017-05-12|2017-08-08|上海理工大学|A kind of macromolecular mud curing agent and preparation method thereof| DE3642859A1|1986-12-16|1988-06-30|Hoelter Heinz|Process for incorporating residues, such as salt-containing products and/or heavy metals and other products not appropriate for land filling, into binders, which are to be incorporated to be resistant to leaching| DE3838671A1|1988-11-15|1990-05-17|Hoechst Ag|Process and plant for converting pollutant-containing dusts into landfillable form| DE3900328C1|1989-01-07|1990-04-26|Salzburger Stadtwerke, Salzburg, At|
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申请号 | 申请日 | 专利标题 PL1978205681A|PL124516B1|1978-03-30|1978-03-30|Method of rendering harmless and solidifying drilling fluid wastes| 相关专利
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