Calculation of pH Values for Mixed Waters

Qian Hui; Song Xiuling; Zhang Xuedi; Yang Chao; Li Peiyue
April 2011
E-Journal of Chemistry;2011, Vol. 8 Issue 2, p657
Academic Journal
Mixing of waters with different compositions is a common phenomenon. The pH of mixed water can be calculated by introducing charge neutrality equation into the equations for equilibrium distribution calculation of species in water. In this paper, the equations thus obtained were solved by golden section method. To verify the calculation method, laboratory experiments were done for three sets of mixing water. The results showed the calculated pH values are in good agreement with measured ones.


Related Articles

  • What is water? Needham, Paul // Analysis;Jan2000, Vol. 60 Issue 1, p13 

    Focuses on the ambiguity in the modern use of the term `water.' Role of the macroscopic features of matter in the determining chemical types; Consequences in providing a construal of water as H2O and relating micro- to macrodescriptions; Several definitions of water; Identification of the...

  • Drip water Geochemistry of Niah Great Cave, NW Borneo, Malaysia: a base line study. Prasanna, M.; Nagarajan, R.; Chidambaram, S.; Manikandan, S.; Elayaraja, A. // Carbonates & Evaporites;Apr2014, Vol. 29 Issue 1, p41 

    A base line study was conducted to understand the geochemical variations of drip waters in Niah Great Cave, Sarawak, NW Borneo of Malaysia. Drip waters were collected at three different sites within the cave (D6: SW entrance enroute to painted Cave; D5: centre of the Great Cave, and D8: west...

  • Evaluation of the groundwater quality with WQI (Water Quality Index) and multivariate analysis: a case study of the Tefenni plain (Burdur/Turkey). Varol, Simge; Davraz, Aysen // Environmental Earth Sciences;Feb2015, Vol. 73 Issue 4, p1725 

    Groundwater is a vital source of water for domestic and agricultural activities in the Tefenni plain. Therefore, groundwater quality, seasonal variations and its suitability for drinking, irrigation and industrial usage were evaluated. In this study, 56 water samples were collected from springs,...

  • Adsorption of Cd to natural biofilms in the presence of EDTA: effect of pH, concentration, and component addition sequence. Hua, Xiuyi; Hu, Jinrui; Jiang, Xu; Dong, Deming; Guo, Zhiyong; Liang, Dapeng // Environmental Science & Pollution Research;Feb2013, Vol. 20 Issue 2, p1079 

    Both dissolved organic matters (DOM) and natural biofilms are important substances in controlling the behavior of trace metals in natural aquatic environments. In this study, ethylenediaminetetraacetic acid (EDTA) was selected as a typical DOM to investigate the effect of DOM on the adsorption...

  • Trends of bulk precipitation and Streamwater Chemistry in a Small Mountainous Watershed on the Shikoku Island of Japan. Rahman, Abu Rahman Md. Anisur; Hiura, Hiromasa; Shino, Kazuo // Water, Air & Soil Pollution;Sep2006, Vol. 175 Issue 1-4, p257 

    For this study, characteristics and trends of the chemical constituents in bulk precipitation and streamwater were observed in a small mountainous watershed on the Shikoku Island of Japan, which covered an area of 27.4 hectares. Bulk precipitation and streamwater chemistry data spans from May...

  • Characteristics and Origins of Hot Springs in the Tatun Volcano Group in Northern Taiwan. Chia-Mei Liu; Sheng-Rong Song; Yaw-Lin Chen; Shuhjong Tsao // Terrestrial, Atmospheric & Oceanic Sciences;Oct2011, Vol. 22 Issue 5, p475 

    This paper systematically surveyed distribution and field occurrences of 13 hot springs as well as geochemical investigation on the geothermal area of the Tatun Volcano Group (TVG). According to Piper diagrams, pH values, field occurrences and water-rock interactions, these hot springs can be...

  • Distribution of Trace Elements in Meromictic Pit Lake. Szarek-Gwiazda, Ewa; ┼╗urek, Roman // Water, Air & Soil Pollution;Jul2006, Vol. 174 Issue 1-4, p181 

    Studies were conducted at the deepest location of the meromictic Piaseczno pit lake, southern Poland, which was created in abandoned sulphur opencast. Pearson correlation and PCA were used to established the relationship between the elements and physico-chemical parameters of the water, whereas...

  • A Statistical appraisal to hydrogeochemistry of fluoride contaminated ground water in Nayagarh district, Odisha. Routroy, S.; Harichandan, R.; Mohanty, J.; Panda, C. // Journal of the Geological Society of India;Mar2013, Vol. 81 Issue 3, p350 

    Seasonal variation of ground water in Nayagarh district, Odisha is determined by analysing both pre and post monsoon water samples. The high fluoride content is an endemic problem in the area and special attention was attached to the point. The chemical compositions of the ground water of the...

  • Seasonal variation of water chemistry and sulfur budget in an acid-sensitive river along the Sea of Japan. Kobayashi, Ryo; Sumarriani, Yani; Yamashita, Naoyuki; Ohta, Tsutomu; Matsubara, Hiroki; Yagoh, Hiroaki; Nakata, Makoto; Sase, Hiroyuki // Limnology;Aug2013, Vol. 14 Issue 2, p195 

    A long-term declining trend of pH values has been observed for several rivers in areas of central Japan that are geologically dominated by acidic rocks such as granite, rhyolite, or chert. We monitored the seasonal variation in water chemistry in one of these rivers: the Araya River in Niigata...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics