QUALITY CATEGORY A & CATEGORY B FACTORY

Printing and dyeing factories serve as crucial production facilities for textile dyeing and printing. Nevertheless, the significant pollution caused by high concentrations of dyes and pigments can inflict severe harm on water bodies and ecosystems.   Consequently, printing and dyeing factories are obliged to treat the high-chroma wastewater they produce. The high-chroma wastewater from printing and dyeing factories refers to the wastewater that contains a substantial amount of dyes and pigments generated during the printing and dyeing processes. Traditional wastewater treatment techniques have relatively limited efficacy when it comes to dealing with high-chroma wastewater. Hence, specific decolorizing agents are required for its treatment. The application of decolorizing agents can remarkably decrease the chroma and dye concentration of the wastewater, enabling it to comply with environmental standards.   By virtue of mechanisms such as physical adsorption, chemical reactions, or coprecipitation, the decolorizing agent can rapidly transfer or transform the dyes into harmless substances, thereby achieving an efficient decolorization effect.   The utilization of decolorizing agents can lower the content of dyes and pigments in the wastewater, thus reducing environmental pollution and ecological damage.   Treating the high-chroma wastewater in printing and dyeing factories with decolorizing agents plays a vital role in environmental protection and sustainable development. Through the treatment with decolorizing agents, printing and dyeing factories can effectively reduce the chroma and dye concentration of the wastewater, meet environmental requirements, and mitigate their impact on the aquatic ecosystem.

Organic defoamers, including mineral oils, amides, low alcohols, fatty acids, fatty acid esters, and phosphate esters, were studied and applied at an earlier stage. They belong to the first generation of defoamers. These defoamers have the advantages of easily available raw materials, good environmental performance, and low production costs. However, they also have drawbacks such as low defoaming efficiency, strong specificity, and strict usage conditions.   The polyether defoamer is the second generation of defoamers. It mainly consists of straight-chain polyethers, polyethers with alcohol or ammonia as the initiator, and polyether derivatives with end-group esterification. The most prominent advantage of polyether defoamers is their strong anti-foaming capacity. Moreover, some polyether defoamers possess excellent properties like high temperature resistance, strong resistance to acids and alkalis. Nevertheless, their usage conditions are restricted by temperature, their application fields are relatively narrow, their defoaming ability is not strong, and the bubble-breaking rate is low.   Silicone defoamers (the third generation of defoamers) have numerous advantages, such as strong defoaming performance, rapid defoaming ability, low volatility, no toxicity to the environment, no physiological inertia, and a wide range of applications. Therefore, they have broad application prospects and huge market potential. However, their foam suppression performance is not satisfactory.   Polyether-modified polysiloxane defoamers simultaneously possess the advantages of polyether defoamers and silicone defoamers, and they represent the development direction of defoamers. In some cases, they can even be reused based on their reverse solubility. However, there are only a few types of such defoamers, which are still in the research and development stage, and the production cost is relatively high.

Description   LSD8003 Plant Liquid Deodorant is formulated with natural ingredients, utilizing internationally advanced low-temperature extraction technology. Its primary active components are derived from over 300 herbs, including mugwort, mint, citronella, ginkgo biloba, tea polyphenols, grape seeds, camphor plants, eucalyptus oil, lotus, and lavender. Under high-energy conditions, the product enhances the activity of the plant-based liquid, enabling it to rapidly engage in polymerization, substitution, replacement, adsorption, and chain-breaking reactions with various harmful and odorous molecules. This process transforms these molecules into harmless, odorless compounds. The eco-friendly deodorant is neutral, non-toxic, non-flammable, non-corrosive, and free from secondary pollution. It effectively eliminates hydrogen sulfide, methane, methyl mercaptan, ammonia, and other volatile organic compounds (VOCs) and odorous gases.   Function   The product effectively breaks down odor-causing gas molecules, including hydrogen sulfide, ammonia, methyl mercaptan, methyl sulfide, and other volatile organic compounds (VOCs) in odorous environments. According to tests conducted by CMA-accredited professional institutions, the removal rates are 95.3% for hydrogen sulfide, 96% for ammonia, and 95.2% for methyl mercaptan. This scientifically validated product demonstrates high deodorization efficiency. Additionally, it has been tested by the Center for Disease Prevention and confirmed to be non-toxic through oral, inhalation, and skin contact routes, making it a safe and non-irritating solution. The product is harmless to humans, animals, and plants, ensuring peace of mind during use.     Features & Benefits Instruction for use For space deodorization, the product can be applied using high-power air cannons or micro-spray devices such as manual sprayers or small automated spray systems. The dilution ratio varies depending on the method: manual spraying requires a dilution of 300-400 times, equipment spraying requires a dilution of 50-200 times, and timed or rationed spraying systems require a dilution of 100-200 times. For industrial wastewater, pulp, or sludge treatment, the plant-based deodorant can be added directly to the wastewater at a rate of 0.1-1kg per ton of sewage.    

How to calculate the dosage amount of decolorizing agent?     1. Dosage Calculation of Reagent (PPM) The formula for calculating the reagent dosage in parts per million (PPM) is: Dosage (PPM) = [(Number of drops / 20) × Dilution concentration / Volume of test wastewater] × 10⁶   ★ PPM represents one part per million. A dosage of 1 PPM means 1 gram of reagent is added to 1 ton of wastewater. ★ 1 mL of diluted solution is equivalent to 20 drops.     2. Experimental Procedure Take 200 mL of test wastewater (chroma: 200, COD: 110) using a beaker. Adjust the pH value to 8. Add 10 drops of decolorizing agent solution using a dropper (1 mL = 20 drops) and stir. Add 12 drops of PAC (Polyaluminum Chloride) and stir. Add 2 drops of PAM (Polyacrylamide) and stir. Let the solution stand for 1 minute.     Results:   Chroma: 4 (measured using the dilution multiple method) COD: 85 The results meet the national emission standards.       3. Reagent Preparation Dosage   Decolorizing agent: 2% solution (diluted 50 times) PAC: 2% solution PAM: 1‰ aqueous solution   Calculations: Decolorizing agent dosage = [(10/20) × 2% / 200] × 10⁶ = 50 PPM PAC dosage = [(12/20) × 2% / 200] × 10⁶ = 60 PPM PAM dosage = [(2/20) × 1‰ / 200] × 10⁶ = 0.5 PPM   Interpretation:   Decolorizing agent: 50 PPM = 50 grams of stock solution per ton of wastewater. PAC: 60 PPM = 60 grams of stock solution per ton of wastewater. PAM: 0.5 PPM = 0.5 grams of stock solution per ton of wastewater.

A complete and efficient wastewater treatment system can be divided into three levels: primary treatment, secondary treatment and tertiary treatment.   1.Primary treatment The primary treatment is the bottom of the whole wastewater treatment system, which is mainly used to remove the large suspended solids in the water. Physical method is most frequently used. Alum or carbon block is usually used to remove the large suspended solids in the wastewater. The adsorbed wastewater will enter the secondary treatment.   2.Secondary treatment Secondary treatment refers to remove the colloidal and dissolved organic pollutants in the water with biochemical treatment method, and precipitate the organic pollutants in the water. The treated sewage basically meets the discharge requirements and can meet the recycling requirements for specific purposes.   3. Tertiary treatment. The tertiary treatment is the highest level of wastewater treatment. Wastewater will be decontaminated to the maximum in this process. Tertiary treatment, also known as advanced treatment, is mainly for dissolving organic matter and dissolved salts in wastewater that are difficult to be biodegraded. After this process, the water quality is good and can be directly put into use in industrial production, and the purpose of wastewater treatment is basically achieved.

Polyacrylamide is widely used in the paper making industry. It can be used as paper making dispersant, paper making retention aid, and paper making wastewater treatment flocculant. 1. Polyacrylamide as paper making dispersant: Generally, we use anionic polyacrylamide with molecular weight between 14-18 million. 2. Polyacrylamide as paper making retention aid: It is recommended to use high quality cations, so that the effect of filtration aiding is better, and the dosage is more economical. 3. Polyacrylamide as paper making wastewater treatment flocculant: In the process of paper making wastewater treatment, the selection of polyacrylamide should be based on the situation of sewage, on-site sewage treatment process and sludge dewatering equipment. Generally, cationic polyacylamide with molecular weight of more than 9 million is selected as sludge dewatering agent.

A: After calendering, the paper fiber is no longer loosely arranged, but has a certain degree of tightness, but the surface smoothness still can not meet the requirements of high-grade fine printing. The surface uniformity of uncoated paper is poor. After printing, the ink color is uneven, and the glossiness is low. It can not restore the fine dot, resulting in layer loss, and the uniformity of the field part of the image will be reduced, which will affect the printing reproduction effect. Therefore, the fine printing paper must be coated to further improve the surface performance of the paper.

1. Global Market From the perspective of the global water treatment chemicals market, the growth rate has been stable in the past five years. In 2019, the global demand was about 40 million tons. It is estimated that by 2025, the global revenue will maintain a CAGR growth of 6%.   2. Regional Markets From a regional perspective, the Asia-Pacific, North America, and Europe are the three major regional markets. The Asia-Pacific benefited from a fast-growing economy and increased public awareness of environmental protection has made the government more active in wastewater treatment. Different from the relatively complete sewage treatment system in developed economies, regions such as China, India, and Southeast Asia have produced a large amount of industrial wastewater that needs to be treated due to the industrialization process in recent years. In addition, many poor areas in these regions have a demand for clean drinking water. The Asia-Pacific region will be the fastest growing area of water treatment chemicals.   The Middle East, Africa, Latin America and other places have relatively little demand for water treatment chemicals.  

Advantages of defoamer LS6030/LS6060 (for paper making)     Defoamer for paper making advantages: 1. Adapting to pulp with various pH values, and also to a temperature as high as up to 80℃; 2. Maintaining long-time effect in continuous white water treatment system; 3. Making good result on papermaking machines, without affecting on the sizing process; 4. Improving the operation of the paper machine and the quality of the paper; 5. Continuing the defoaming and the degasing without leaving any side effect on the papermaking.

Production situation The national output of machine-made paper and paperboard was 79.393 million tons, a year-on-year decrease of 2.3%. Last year,the national output of machine-made paper and paperboard was 11.133 million tons, a year-on-year increase of 5.3%.   Benefits situation From January to August 2020, the operating revenue of China's paper and paper products was 786.37 billion yuan, a year-on-year decrease of 6.5%; the total profit was 39.68 billion yuan, with a year-on-year increase of 7.3%.

1.This product is mainly used in textile printing and dyeing, paper making, pigment, municipal wastewater, chemical wastewater, ink wastewater and other color wastewater treatment, reducing the color of sewage.   2.This product can be mainly used in reclaimed water reuse, pretreatment of colored wastewater, oilfield drilling and other water treatment fields.   3.It can also be used as reinforcing agent, sizing agent and fixing agent for papermaking.   4.This product is based on the principle of flocculation and decolorization, without residual metal ions. The water pollution problem can be solved once through mud water separation, without secondary pollution. The dosing process is simple and has strong adaptability.

In order to reduce plastic pollution and protect the ecological environment, the government limit the production of some plastic products. It can be expected that the demand for paperboard will increase significantly as paper food grade containers and cups will replace plastics in the next few years. With the introduction and development of the new plastic limit order, China's paper products will usher in a new development.

Common auxiliaries for papermaking - SAE SURFACE SIZE AGENT     1)Widely used in the surface sizing of Coated Whiteboard, kraft liner,corrugated base paper, white cardboard, etc, 2)It can be mixed with starch or used alone 3)It can greatly reduce the Cobb value of the paper 4)Improve the stiffness of the paper 5)It can completely replace the sizing agent in pulp 6)Reduce production costs  

  Compared with traditional inorganic coagulants, ACH (Aluminum Chlorohydrate) has the following advantages:  High purity and low iron content can meet papermaking and cosmetic production. Flocs forms quickly and settles quickly, which has higher processing capacity than traditional product. The appearance of the powder product is white, the particles are uniform, and the fluidity is good. The product solution has low turbidity and good stability. A wide range of PH values are used, ranging from 5.0 to 9.0. The least residual dissolved salt is beneficial to ion exchange treatment and high-purity water production. It has strong adaptability to changes in turbidity, alkalinity, and organic matter content. Good flocculation effect can be maintained for low temperature, low turbidity water quality. The amount of residual free aluminum is low, and the water quality after purification meets the requirements of national standards. Corrosion is small, the powder is easy to dissolve, better than other similar products.

    Polyacrylamide is widely used in the paper making industry. It can be used as paper making dispersant, paper making retention aid, and paper making wastewater treatment flocculant. Polyacrylamide as paper making dispersant: Generally, we use anionic polyacrylamide with molecular weight between 14-18 million. Polyacrylamide as paper making retention aid: It is recommended to use high quality cations, so that the effect of filtration aiding is better, and the dosage is more economical. Polyacrylamide as paper making wastewater treatment flocculant: In the process of paper making wastewater treatment, the selection of polyacrylamide should be based on the situation of sewage, on-site sewage treatment process and sludge dewatering equipment. Generally, cationic polyacylamide with molecular weight of more than 9 million is selected as sludge dewatering agent.  

Raw water Type: Dyeing wastewater 100 ml, PH is 7   Treatment Plan: Don’t adjust PH,add 100ppm decoloring agent, add 200ppm PAC, and then 5-10ppm (PAM).   Test Result： The color can be successfully removed by water decoloring agent.  

  The biggest advantage of AKD sizing: calcium carbonate can be used as filler, improve the whiteness, opacity, folding resistance, surface strength, durability and printing performance of paper   Disadvantages: the brittleness of paper is reduced   The sizing mechanism of AKD: when the AKD emulsion is added to the slurry, the sizing particles are dispersed in the slurry, and a lot of sizing particles form larger flocs. These flocs are adsorbed on the surface of fibers and fillers, then these paper materials are kept in the wet end.   In the drying part, AKD particles melt and expand on the surface of the fiber, and the reactive functional groups on the molecule face the fiber, forming irreversible keto group with the fiber; the hydrophobic group part outward, making the paper water-resistant.    

      1.Pulping section: raw material selection → cooking and fiber separation → washing → bleaching → washing and screening → concentration or preparation of pulp chips → storage and standby   2.Papermaking section: dispersing → removing impurities → refining → beating → preparing various additives → mixing of paper materials → flow of paper materials → header → net part → pressing part → drying part → surface sizing → drying → calendering → coiling into paper   3.Coating section: coating base paper → coating by coater → drying → coiling → rewinding → super calendering   4.Processing section: rewinding → cutting plate (or drum) → sorting and packaging → warehouse        

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