What are the indicators of fresh water for industrial water use? Is there a national standard?
Thread Content
This post was last edited by cdpulin on 2010-7-5 13:53 What are the indicators of fresh water for industrial water? Is there a national standard? Ask an expert for advice.
There seems to be no specific and universal standard for fresh water used in industrial water, but there are industry standards, which are closely related to the factory, such as some design requirements and specifications.
This post was last edited by cdpulin on 2010-7-5 13:53 The same indicators are used for fresh water and domestic water here. I think the specific indicators are related to your process. The main things we control here are post-filtration turbidity, residual chlorine and outlet turbidity.
This post was last edited by cdpulin on 2010-7-5 13:53. It is directly used for domestic water. Our daily consumption here is about one thousand cubic meters.
Indicators of fresh water for industrial water use * * There is no unified indicator. Generally speaking, the indicators of this type of water are determined based on the use of water in subsequent industrial production and the capacity of the factory's fresh water treatment facilities, which should vary from place to place. However, for fresh water for industrial use, the index of concern is nothing more than: Turbidity, PH, alkalinity, hardness, dissolved solids, etc. If reuse of sewage is involved, COD, ammonia nitrogen, sulfur, etc. should also be added.
Fresh water generally refers to water transported in from outside the factory. This water may be purified water, or it may be directly extracted surface water or groundwater, depending on the specific conditions of each factory.； There is no specific water quality standard for industrial fresh water. Since different industries have different water quality, it is difficult to make a unified standard. * * It is controlled by standards. At present, different industries still formulate water quality standards for their own enterprises or industries according to their own needs.
If groundwater is used, refer to "GB/T 14848-1993 Groundwater Quality Standard"
For industrial water, if it is used as circulating water, you can refer to the "Design Code for Industrial Circulating Cooling Water Treatment GB50050-2007". Most of the water I encounter is circulating water, and I always refer to that.
Our factory only performs turbidity control. The water quality in each place is different, and the production conditions of each factory are different, and they will also have different requirements for water quality.
Fresh water is groundwater or surface water. The groundwater must undergo desalination treatment, such as aeration, ultrafiltration and reverse osmosis, etc. The specific indicators are based on the design requirements.
What substances are mainly responsible for the conductivity of new water?