Experimental study on the control of black smoke pollution from the ceramic kilns based on the mechanism of the surfactant and coagulant

Abstract

Aiming at the characteristics of carbon black, a new method of controlling the black smoke from the industrial coal-burning ceramic kilns by wetting was brought forward. The carbon black in the flue of coal-burning ceramic kiln was collected for the experiments, and its physical and chemical properties were studied in detail. In order to change the sedimentation and wettability state of the carbon black, the complex solution of the coagulant and surfactant was applied. After a series of orthogonal experiments, the complex solutions with better effects were chosen. Then, the sedimentation percentage of carbon black treated by the selected complex solutions was measured. The optimized complex solutions included Na₂SO₄ (100 mmol/L), sodium dodecyl benzenesulfonate (SDBS) (1.2 mmol/L) and polyacrylamide (PAM) (40 mg/L). After carbon black was absorbed, the complex solutions were clear and colorless. The complex solutions can be recycled, and the sedimentation percentage of carbon black is 94%.

References

1. Shen H Qiang N The black smoke removal techniqueof coal-burning kilnEnergy EnvironmentalProtection 2003 17(2)3440(in Chinese)
2. Huang L H Ceng Li K Ren X T The prevention and control of NO_x in ceramic kilnChina Ceramic 2000 36(6)2325(in Chinese)
3. Shen S B Theelementary discussed measure of powder dust removal in the processof building ceramics factoryShandong Ceramic 2000 23(3)2931(in Chinese)
4. Xiong H Li W Shi S X Research and Development of combined dust collector forcoal 2 fired manual operated boileIndustrialBoiler 2004 85(3)4345(in Chinese)
5. Oberdorster G Geliein R M Ferin J Weiss B Association ofparticulate air pollution and acute mortality: Involvement of ultrafine particleInhalation Topical 1995 7111124
6. Weth M Mathias J The structure of carbon blacksmeasured with (Ultra) small angle X-ray scatteringJournal of Porous Materials 2001 8(4)319325
7. Ma G D Hao J M The Pollution Control Techniqueof AtmosphereBeijingHigher Education Press2001136140(in Chinese)
8. Xu G X Ruan F C Performance Analysis of iron-basedand al-based inorganic flocculantsChongqingEnvironment Science 2001 23(3)5255(in Chinese)
9. Yang J Z Li H Ren Q H The application of complex surfactants in chemical disposalof cobon waterHeilongjiang Pulp and Paper 2004 (1)89(in Chinese)
10. Zou L H Fang Y Lv S S Mixing behaviors and application of anionic-cationic surfactantsChina Surfactant Detergent and Cosmetics 2001 31(5)3740(in Chinese)
11. Angelika B Roger H Jurgen O B Substrate induced coagulation (SIC) of nano-disperse carbonblack in non-aqueous media: The dispersibility and stability of carbonblack in N-methyl-2-pyrrolidinoneColloids and Surfaces A: Physicochem. Eng. 2005 253(2)155161
12. Qiu G Y Profoundexplanation about analyzing reliability test data by applying statisticsJournal of East China Jiaotong University 2004 21(1)126129(in Chinese)
13. Zhao G X ThePhysical and Chemical Characteristics of SurfactantsBeijingPeking University Press 1984 421450(in Chinese)
14. Zhu B Y Zhao G Z The Basic of Interface ChemistryBeijingChemicalIndustry Press 1999 121221(in Chinese)
15. Adamson A W ThePhysical and Chemical Characteristics of SurfactantsBeijingScience Press 1983 450478(in Chinese)
16. Zheng Z M Obbard J P Evaluation of an elevated nonionicsurfactant critical micelle concentration in a soil/aqueous systemWater Res. 2002 3626672672
17. Indrek K Alex H Robert H H Eric M S Adsorptionof surfactants on unburned carbon in fly ash and development of astandardized foam index testCement andConcrete Research 2003 3320912099
18. Ge J T Newbipolar electrocoagulation-electroflotation process for the treatmentof laundry wasterSeparation and PurificationTechnology 2004 36(1)3339
19. Huang J H Zhu C Y Luo M B Monte Carlo simulation on surfactant-polymer mixed system.Acta Physico-.Chimica Sinica20(7)690695(in Chinese)
20. Xia S Q Yang D H Xu B et al.Chemical and biological flocculation process totreat municipal sewage and analysis of biological functionJournal of Environmental Sciences 2005 17(1)163167