Re-use of treated laboratory effluents by a treatment system incorporating the 'sirotherm' desalination process
✍ Scribed by Toshihiro Maeda
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 399 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0011-9164
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✦ Synopsis
tro of the najor problems in treating laboratory effluents are the wide range of chenical conpounds in the effluent streana and large fluctuations in the volume of effluents to be treated. A conprehensive effluent treatnent system was installed at Central Research Laboratory of Mitsubishi Chenlcal Industries. This provides effective treatnent of diffLcult laboratory effluents and the partial reclarzatfon of effluents for re-use vithin the Laboratory. The present system vhich does not incorporate a desalination process treats l.596rr3/day of a ctixture of laboratory and domestic effluents. and 84Sn3/day of treated effluents containing 534 ppn dissolved salts are currently reclained for re-use. Kowever. the re-use of treated effluents 1000, PaamsMda-Cho. NLdorL-ku. Tokohma, Japan :o the environEent. 10 recent years, further stringent efflueac standards have been enforced to control harmful substances such as heavy metals and cyanide c0zpounds contained in effluents frm labararories. hospitals et& Under these circusstances. the star.dards for effluents from the Laboratory vere set uader an agreement between Mitsubishi Chemical Industries aad Yokohama City authorities as shave in Table 1. To confom to the standards. a coaxprehensive e'ffluent treatneat and water re-use system vith-