Contents of various substances in aniline wastewater
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The COD of the wastewater produced by our company is around 1000 mg/l. I would like to ask if anyone has ever analyzed the components in it, specifically the levels of aniline, benzene, and *** This post was last edited by johncom on 2009-3-18 15:55]
This wastewater is not a formulated industrial product, with all its components being identical. Due to differences or slight variations in the raw materials and production processes used by various units, the composition of the wastewater also varies; even with the same process, the concentrations differ depending on the amount of water used. Therefore, only by conducting measurements oneself can accurate data be obtained.
Analyze it yourself; if you don’t have the necessary facilities, just find a water quality testing laboratory to do the test and you’ll know. Additionally: even at the same sampling point, the concentrations of various components in the wastewater vary over time.
1. Quantification can be carried out using liquid chromatography; the method of using a working curve will suffice. 2. If liquid chromatography is not available, gas chromatography can also be used. Relevant methods can be posted in the Analytical Technology Discussion forum. If no instruments are available, then the only option is to commission an inspection, which will cost some money
I mean, roughly how much is it? Is there an approximate range based on experience?
The aniline content is roughly one-third to one-quarter of your COD value in ppm; this is an empirical value, and the actual value must be determined through testing.
Okay, thank you. Where *** is it?
***An algorithm similar to that of aniline. The saturated *** wastewater*** contains 2000 ppm of ***.
The main components of aniline wastewater depend on the processing methods and controls used; the primary component is likely aniline. Using resin treatment for this type of wastewater can reduce the COD level to below 100
So, what should be done with the resin after adsorption?
I think it’s necessary to get the stripping tower working properly first. In the past, the COD level of the company’s wastewater was very high, and there was a strong *** odor; it really seemed like it could be deadly. The sludge in the biological treatment tank would often become contaminated, resulting in a lot of foam. Now, with strict controls in place, the COD level has decreased, and the quality of the wastewater has improved. Occasionally, foam appears when the load is high. However, color removal isn’t possible yet; the company has installed three activated carbon tanks, which have basically solved this problem, and the wastewater is now very clear
Resin can be regenerated and reused; it generally can be used for at least two years
Is the material content in the water very high during regeneration, causing secondary pollution?
I have used activated carbon before; it loses its effectiveness too quickly. Can it be regenerated?
Is there a large amount of material in the resin, with a high concentration, that can be recovered and reused in the system?