Sep 12, 2014
121. What standards do Dow FILMTEC membrane products meet?All Dow FILMTEC™ (TW30, BW30, BW30LE, XLE, SW30, SW30HR, NF90, NF200B, and NF270) membrane elements comply with FDA 21 CFR 177.2550.Most Dow ...
Sep 12, 2014
Water is the most widely used raw material in pharmaceutical production, used in both the manufacturing process and the preparation of pharmaceutical formulations.The Chinese Pharmacopoeia (2000 editi...
Sep 12, 2014
In water treatment, coagulation and flocculation are generally collectively referred to as coagulation. Coagulation typically refers to the process of using electrolytes to compress the electric doubl...
Sep 12, 2014
Conventional water sterilization involves chemical dosing and ultraviolet (UV) inactivation. For example, purified water, widely used as beverage water, undergoes reverse osmosis desalination followed...
Sep 12, 2014
Because the adsorption process and working principle involved in activated carbon water treatment are quite complex, many factors influence it. These mainly relate to the properties of the activated c...
Sep 12, 2014
Based on their role in the coagulation process, coagulants can be divided into two categories: coagulants and flocculants. They function as destabilizers and flocculants respectively, and are collecti...
Sep 12, 2014
The adsorption capacity of the same type of activated carbon varies greatly for different pollutants.(I) SolubilityThe solubility of substances within the same family decreases with increasing chain l...
Sep 12, 2014
Coagulants in water purification plants generally adopt wet dosing, including agent dissolution, preparation, metering, dosing and mixing.The dosage of pharmaceuticals can be done by gravity or by pre...
Sep 12, 2014
To reduce malfunctions and decrease the frequency of reverse osmosis (RO) cleaning, the following measures should be taken:Design the RO system based on a complete water quality analysis;Determine the...
Sep 12, 2014
The effect of solution pH on adsorption must be considered in conjunction with the effects of activated carbon and the adsorbate (solute). Solution pH controls the degree of dissociation of acidic or ...
