Printing and dyeing industry wastewater treatment technology: water quality printing and dyeing wastewater complex, according to the source of contamination can be divided into two categories: one entrainment from the fiber material itself; the other is the process used in the slurry, oils, dyes, chemical additives. Analyze the wastewater characteristics, mainly in the following aspects.  water, high levels of organic pollutants, color depth, alkaline and pH big change, dramatic changes in water quality. Due to the development of synthetic fabrics after dyeing and finishing and painting works technological advances, making it difficult biochemical degradation of organic matter PVA slurry, so a lot of new additives into the dyeing wastewater treatment increased the difficulty.  due to the different dyes and different additives, different fabric dyeing and finishing requirements, so the pH of the wastewater, CODCr, BOD5, color, also vary, but their common feature is the BOD5 / CODCr values ??are very low, generally in the about 20%, poor biodegradability, and therefore need to take measures to BOD5 / CODCr value increased to about 30% or higher in Jiangning District stucco engineering services to facilitate biological treatment.  dyeing wastewater alkali reduction wastewater CODCr value of some of its up to 100,000 mg / L or more stucco engineering services company, pH values ??of ≥12, it must be pretreated to Recovery Which Nanjing painting works cheap and adding acid to lower the pH, the pretreated meet certain requirements, and then into the conditioning tank, be disposed of with other printing and dyeing wastewater. Laminate flooring maintenance There are tips: 1. After completion of flooring to maintain indoor air circulation. 2, 12 hours after the floor installation, personnel should move furniture can be placed. 3, overweight items should be stable resting place, furniture and heavy objects are not rigid sliding drag, so as not to scratch the surface of the floor. 4, prohibited weapon scratch the floor surface. 5, to avoid water soaking the floor. If an accident should be promptly wiped the floor with a dry mop and ventilation. 6, keep the floor clean and dry, the floor surface in case of stains, usually with no dripping tide mop dry. 7, if stained with chocolate, oil, juice, beverage, just wipe with warm water and mild detergent. 8, if they are contaminated lipstick, crayon, ink, etc., can be used methanol, ethanol or acetone wipe gently. Which painting works Nanjing | Nanjing painting works | elegant cleaning provided by Nanjing Elegant Cleaning Services Limited. Nanjing Elegant Cleaning Services Limited (www.qybj880.cn) (http://www.qybj880.cn) strong, credible, in Nanjing, Jiangsu Province Cleaning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead into the elegant and brilliant cleaning and you work for a better future! You can also access (http://www.qybj880.cn/supply_details_42364790.html), for more information about the company.