Refuse to be a novice in laboratory wastewater neutralization and treatment, those professional management requirements you should get

    With the increase of scientific research experiments, laboratory wastewater has gradually increased, and its treatment methods have attracted everyone's attention, because improper treatment is likely to cause chemical pollution and poisoning, and now most of them are neutralized. The principle of laboratory wastewater neutralization treatment is to discharge high-concentration waste acid and alkali solution to neutrality after neutralization. The high concentration organic solvent contains a small amount of the tested substance and other reagents should be recycled. The high-concentration wastewater used for recycling should be stored and recycled in a centralized manner, and the low-concentration wastewater should be discharged after treatment. The storage container and storage conditions should be determined according to the nature of the wastewater. Different wastewaters are generally not allowed to mix, avoid sunlight, and keep away from heat sources to avoid adverse chemical reactions. Wastewater storage containers must be labeled with the type, storage time, etc.

It is necessary to attach great importance to laboratory wastewater management and play an exemplary role in the implementation of green laboratories.

1. Improve the management system and norms.

It has played a demonstration role in practical work, and it also attaches great importance to the treatment of wastewater. Establish a laboratory wastewater neutralization treatment management system, formulate technical specifications that are easy to operate according to the actual situation, and assign special personnel to be responsible for incorporating wastewater treatment into daily management.

2. Centralized management and treatment of wastewater.

There are many types of laboratory wastewater, but not many. If each laboratory treats the wastewater generated from each experiment separately, it may cause difficulties in terms of equipment, manpower, time, etc. Therefore, according to the type of wastewater, each laboratory can collect it through classification, centralized storage and regular unified treatment by special personnel. In order to reduce and avoid "secondary wastewater", pay attention to the recycling of waste.

3. Repeated use of reagents.

Reagent recycling is a win-win measure, which can reduce environmental pollution and save the cost of monitoring departments. Effective measures should be taken to recover organic solvents that are not directly involved in chemical reactions.

Matters needing attention in laboratory wastewater neutralization treatment:

1. Try to recover the solvent and use it repeatedly without hindering the experiment;

2. In order to facilitate processing, the collection and classification are usually divided into: a) flammable substances b) flame retardant substances c) aqueous wastewater d) solid substances, etc.

3. Water-soluble substances are easily lost in aqueous solutions. Therefore, attention should be paid to the treatment and recycling of laboratory wastewater. However, solvents such as methanol, ethanol and acetic acid are easily decomposed by bacteria. Therefore, a dilute solution of this solvent can be diluted with a large amount of water and discharged.

4. After the wastewater containing heavy metals is decomposed, it is treated as inorganic wastewater.