生化末端 沒有影響，何況少量的鐵鹽能夠對Phosphorus removal agent for road treatment is a kind of material for coagulation and turbidity removal of urban water source and phosphorus removal. It can reach the intent of deep dephosphorization at the same time of coagulation and turbidity removal of urban water source.
Thus, the phosphorus content in treated drinking water can be reduced to below the threshold value, without changing the original water treatment process, without adding large water treatment structures, which is simple, economical and practical, and can achieve remarkable social and economic benefits.
The amount of phosphorus removal agent used in river regulation will not cause adverse effects. After all, iron is also a trace element needed for microbial growth. However, if the dosage is too large, the sludge activity will be affected. There are still doubts about environmental protection and communication.
There is no effect on the biochemical end, let alone a small amount of iron salts.
懸浮物上漂
關于污水處理使用聚合硫酸鐵上水層出現漂浮物的原因以及解決方法
污水處理1. Improper operation,
some non-professional personnel in the experiment used improper techniques, adding polyaluminium chloride, stirring too fast or too slow can not, the first experiment, there must be professional water treatment assistant, this is a very important point.
2. The amount of polyferric sulfate added is not well controlled (too much or too little dosage). In this case, suspended solids are most likely to float.
Before use, the product was put into the alum bath at a certain concentration (10-30%) and stirred with tap water to make it fully hydrolyzed. The product was put into a red-brown liquid and diluted with water until the required concentration was added and coagulated. Waterworks can also be added 2-5% directly, and industrial wastewater treatment can be added 5-10%. B. The determination of dosage depends on the proper amount of alum formed by production debugging or beaker experiment according to the nature of raw water. The other dosage used in water plant can be used as reference. Under the same conditions, the dosage of this product is approximately equal to that of solid polyaluminium chloride, which is 1/3-1/4 of that of solid aluminium sulfate. If the original liquid product is used, it can be calculated according to the concentration of the corresponding agent. It depends roughly on the weight ratio of 1:3.
Reasons and Solutions for Floating Matter in the Upper Water Layer of Polyferric Sulfate Used in Sewage Treatment
運用時可將本產品直接投加，或先參加溶解罐，濃度為10～20%，拌和，用泵投加到反響池。本產品適用的pH值規模廣，在酸性條件下運用效果尤佳，運用量約為100～1000ppm（即0.1～1公斤/噸廢水），依據廢水中磷酸根的含量不同其用量有所差異，詳細用量一般通過試驗斷定。
試驗時取一定量的原水，參加適量的本產品（如500ppm），將廢水pH值調節至7～8，www.hnldscl.com參加少數聚丙烯酰胺PAM絮凝沉積，過濾取上清液測定磷的含量。（如需處理重金屬，用上清液進行二次處理即可。）AC/PAM與除磷劑攪拌后的反應？使用時可將本產品直接投加，或先參加溶解罐，濃度為10～20%，拌和，用泵投加到反響池。本產品適用的pH值規模廣，在酸性條件下使用作用尤佳，使用量約為100～1000ppm（即0.1～1公斤/噸廢水），依據廢水中磷酸根的含量不同其用量有所差異，具體用量一般經過試驗斷定。The amount of polyferric sulfate added is right, but the PH value of wastewater is not right, and there is no optimum range of PH used in the corresponding reagents. The suitable range of PH value is 4-11, and the optimum range of P
H value is 6-9. After purification, the change range of PH value and total alkalinity of raw water is small.
4, the type of water purification products is not correct. According to the characteristics of sewage, choose suitable water purifying agent suitable for its own sewage characteristics, such as polyaluminum chloride, polyaluminum chloride, polyaluminum ferric chloride, aluminum chloride, spray polyaluminum chloride, white polyaluminium chloride, etc., and listen to the advice of professional water treatment division, and give their advice. They are all professional.
Reasons and Solutions for Floating Matter in the Upper Water Layer of Polyferric Sulfate Used in Sewage Treatment
Polyferric sulfate
5. The last point to consider is whether the quality of the polyferric sulfate you use meets the national standards, and whether the various indicators of the polyferric sulfate meet the national standards.
At present, the quality of polyferric sulfate is uneven in the market. Compared with the better quality of Polyferric sulfate, the probability of suspended solids will be very low. The better polyferric sulfate has almost no water insoluble solids, so the quality of products is also very important. Microbial activity has a promotive effect, that is, effluent color has an impact.
Adding chemical Dephosphorizer to the back of biochemical pond can completely avoid the reaction between various substances in water and dephosphorizer, consume the amount of reagent, and will not reduce the concentration of organic carbon in the influent of biochemical pond, affecting the effect of nitrogen and phosphorus removal by microorganisms. At the same time, it can avoid excessive dosage of phosphorus removal agents, and also make the residual agents into the biochemical system, which will affect the growth of microorganisms.
Adding phosphorus removal flocculant to the outlet of aerobic tank and phosphorus removal agent in front of secondary sedimentation tank can greatly reduce the use of phosphorus removal agent. This is because most phosphorus in wastewater has been removed in the process of biochemical treatment, and phosphorus migration and organic phosphorus are converted into positive phosphorus which can be treated by coagulation, which greatly improves the effect of phosphorus removal and improves the efficiency of phosphorus removal. Reduce the dosage of phosphorus removal agent, reduce sludge production, reduce phosphorus content in sludge. Therefore, chemical phosphorus removal agents are generally added to the biochemical process, before the secondary sedimentation tank, to save the cost of phosphorus removal from wastewater and improve the rate of reaching the standard. ?
When in use, the product can be directly added or participated in the dissolving tank, the concentration of which is 10-20%, mixed and pumped into the reaction tank. The product is suitable for a wide range of pH values, especially in acidic conditions. Its application amount is about 100-1000 ppm (i.e. 0.1-1 kg/ton wastewater). According to the different content of phosphate in wastewater, its dosage is different. The detailed dosage is generally determined by experiments.
During the experiment, a certain amount of raw water was taken and the product (such as 500 ppm) was added. The pH value of the wastewater was adjusted to 7-8. www.hnldscl.com participated in the flocculation and deposition of a few PAM. The supernatant was filtered to determine the phosphorus content. (If heavy metals need to be treated, the supernatant can be used for secondary treatment.) Reaction of AC/PAM with phosphorus removal agent after stirring? When in use, the product can be directly added or participated in the dissolving tank at the concentration of 10-20%. The product can be mixed and pumped into the reaction tank. The product is suitable for a wide range of pH values, especially in acidic conditions. Its usage is about 100-1000ppm (i.e. 0.1-1 kg/ton wastewater). According to the content of phosphate in wastewater, its dosage is different. The specific dosage is generally determined by experiments.
試驗時取一定量的原水，參加適量的本產品（如500ppm），將廢水pH值調理至7～8，參加少數聚丙烯酰胺PAM絮凝沉積，過濾取上清液測定磷的含量。（如需處理重金屬，用上清液進行二次處理即可。） FeCl3、及 AlCl3溶液充沛混合均勻后參加NaOH溶液，三者摩爾比為3∶2∶14；混合反響并靜置后濾出生成物，用水重復洗刷至出水為中性；于100-110℃下烘干并制成尺度均勻的粒狀吸附劑。
該吸附劑的使用，在慣例水處理工藝中增設吸附除磷工藝，吸附除磷工藝由2-4個串聯運轉的除磷吸附池組成，除磷吸附池結構同濾池，用粒狀復合鐵鋁除磷吸附劑作濾料，粒徑規模0.5mm-0.8mm，吸附層厚度為1.0-1.5m，吸附池水力負荷5m/h-8m/h，空床觸摸時刻30-40min。該吸附劑除磷適用規模廣；除污染效能優異，再生簡略，質料價格低，易得安全。
PAC/PAM與除磷劑制備辦法
FeCl3及 AlCl3溶液充沛混合均勻后參加NaOH溶液，三者摩爾比為3∶2∶14；混合反響并靜置后濾出生成w物，用水重復洗刷至出水為中性；于100-110℃下烘干并制成尺度均勻的粒狀吸附劑。
該吸附劑的使用，在慣例水處理工藝中增設吸附除磷工藝，吸附除磷工藝由2-4個串聯運轉的除磷吸附池組成，除磷吸附池結構同濾池，用粒狀復合鐵鋁除磷吸附劑作濾料，粒徑規模0.5mm-0.8mm，吸附層厚度為1.0-1.5m，吸附池水力負荷5m/h-8m/h，空床觸摸時刻30-40min。該吸附劑除磷適用規模廣；除污染效能優異，再生簡略，質料價格低，易得安In the experiment, a certain amount of raw water was taken and the product (e.g. 500 ppm) was participated in. The pH value of wastewater was adjusted to 7-8. A few PAM flocculating deposits were participated in. The content of phosphorus in the supernatant was determined by filtration. (If heavy metals need to be treated, the supernatant can be used for secondary treatment.) FeCl3, AlCl3 and AlCl3 solutions were mixed in NaOH solution with a molar ratio of 3:2:14; the product was filtered after mixing reaction and standing, and washed repeatedly with water until the effluent was neutral; the granular adsorbent was dried at 100-110 ~C and made into uniform size.
The adsorbent is used to remove phosphorus by adsorption in conventional water treatment process. The adsorbent consists of 2-4 series operation phosphorus removal adsorbents. The structure of the adsorbent is the same as that of the filter. The particle size of the adsorbent is 0.5mm-0.8mm, the thickness of the adsorbent layer is 1.0-1.5m, and the hydraulic force of the adsorbent is negative. Load 5 m/h-8 m/h, empty bed touching time 30-40 min. The adsorbent has wide application scale for phosphorus removal, excellent pollution removal efficiency, simple regeneration, low material price and easy to obtain safety.
Preparation of PAC/PAM and Phosphorus Removal Agent
FeCl3 and AlCl3 solutions were mixed in NaOH solution with a molar ratio of 3:2:14. After mixing and standing, W was filtered and washed repeatedly with water until the effluent was neutral. The granular adsorbent was dried at 100-110 C and made into uniform size.
The adsorbent is used to remove phosphorus by adsorption in conventional water treatment process. The adsorbent consists of 2-4 series operation phosphorus removal adsorbents. The structure of the adsorbent is the same as that of the filter. The particle size of the adsorbent is 0.5mm-0.8mm, the thickness of the adsorbent layer is 1.0-1.5m, and the hydraulic force of the adsorbent is negative. Load 5 m/h-8 m/h, empty bed touching time 30-40 min. The adsorbent is suitable for phosphorus removal on a wide scale, with excellent pollution removal efficiency, simple regeneration, low material price and easy access to safety.
FeCl3、及 AlCl3溶液充分混合均勻后參加NaOH溶液，三者摩爾比為3∶2∶14；混合反響并靜置后濾出生成物，用水反復洗刷至出水為中性；于100-110℃下烘干并制成尺度均勻的粒狀吸附劑。該吸附劑的使用，在常規水處理工藝中增設吸附除磷工藝，吸附除磷工藝由2-4個串聯運轉的除磷吸附池組成，除磷吸附池結構同濾池，用粒狀復合鐵鋁除磷吸附劑作濾料，粒徑規模0.5mm-0.8mm，吸附層厚度為1.0-1.5m，吸附池水力負荷5m/h-8m/h，空床觸摸時間30-40min。該吸附劑除磷適用規模廣；除污染效能優異，再生簡單，質料價格低，易得安全。
河道治理用的除磷劑適用規模
1、用于生活污水處理廠除磷，特別是合適中磷段污水處理；
2、合適于含外表處理工藝的工業廢水；
3、用于食品廠廢水；
4、用于制藥、造紙、農藥、化肥廠的廢水處理。
5、用于廢物填埋廠廢物滲濾液處理。After fully mixing and homogenizing AlCl3 solution, NaOH solution was added with a molar ratio of 3:2:14; the product was filtered after mixing and standing, and washed repeatedly with water until the effluent was neutral; the granular adsorbent was dried at 100-110 (?) C and made into uniform size. The adsorbent is used to remove phosphorus by adsorption in conventional water treatment process. The adsorbent consists of 2-4 series operation phosphorus removal adsorbents. The structure of the adsorbent is the same as that of the filter. The particle size of the adsorbent is 0.5mm-0.8mm, the thickness of the adsorbent layer is 1.0-1.5m, and the hydraulic force of the adsorbent is negative. Load 5 m/h-8 m/h, empty bed touch time 30-40 min. The adsorbent has wide application scale for phosphorus removal, excellent pollution removal efficiency, simple regeneration, low material price and easy safety.
Application Scale of Phosphorus Removal Agents for River Regulation
1. It is used for phosphorus removal in domestic sewage treatment plants, especially for medium phosphorus section sewage treatment.
2. Suitable for industrial wastewater containing surface treatment process.
3. Wastewater from food factories;
4. Wastewater treatment in pharmaceutical, papermaking, pesticide and fertilizer plants.
5. Waste leachate treatment in waste landfill plants.
學資料，用于紡織品上漿。
4、油田化學品 如粘土防膨劑、油田酸化用稠化劑品等。(PAM) is a linear water-soluble polymer, which is one of the most widely used varieties of water-soluble polymer compounds. PAM and its derivatives can be used as efficient flocculants, thickeners, paper enhancers and liquid drag reducing agents. They are widely used in water treatment, paper making, petroleum, coal, mining, metallurgy, geology, light textile, construction and other industrial sectors.
Nonionic polyacrylamide
Uses: 1. When the suspended sewage is acidic, it is more appropriate to use non-ionic polyacrylamide as flocculant. This is because PAM acts as an adsorption bridge to make suspended particles flocculate and precipitate, so as to purify the sewage. It can also be used to purify tap water, especially in combination with inorganic flocculants, and has the best effect in water treatment.
2. Adding some chemicals to textile industry auxiliaries can be used to compose chemical data for textile sizing.
3. Dissolve non-ionic polyacrylamide into 0.3% concentration and add crosslinking agent in sand control and sand fixation. Spraying on desert can play a role in sand control and sand fixation.
4. Soil moisturizers are used as basic materials of soil moisturizers and various modified polyacrylamides.
Cationic polyacrylamide:
Usage: 1. Sludge dewatering can choose the corresponding brand of this product according to the nature of sludge, which can effectively dewatering gravity sludge before the sludge enters the filter press. When dewatering, it produces large flocs, non-sticking filter cloth, non-dispersing, less dosage, high dewatering efficiency and less than 80% moisture content of mud cake.
2. The treatment of sewage and organic wastewater shows positive electricity in acidic or alkaline medium, so flocculation and precipitation of sewage with negative charge of suspended particles in sewage is very effective, such as wastewater from alcohol factory, brewery, monosodium glutamate factory, sugar factory, meat food factory, beverage factory and textile printing and dyeing factory. Cationic polyacrylamide is several or tens of times more effective than anionic polyacrylamide, nonionic polyacrylamide or inorganic salts, because such wastewater generally has negative charges.
3. Water treatment flocculant in Waterworks has the characteristics of low dosage, good effect and low cost. Especially, the combination of inorganic flocculant and inorganic flocculant has better effect.
4. Oilfield chemicals such as clay anti-swelling agents and thickeners for oilfield acidification.
5. Paper reinforcer cationic PAM is a water-soluble cationic polymer containing carbamoyl group. It has the functions of reinforcement, retention and filter aid. It can effectively improve the strength of paper. At the same time, the product is also a highly effective dispersant.
Anionic polyacrylamide
Uses: 1. Industrial wastewater treatment has the best effect on sewage treatment, such as coarse suspended particles, high concentration, positive charges of particles, neutral or alkaline PH value of water, iron and steel plant wastewater, electroplating plant wastewater, metallurgical wastewater, coal washing wastewater, etc.
2. Drinking water treatment in many Waterworks of our country comes from rivers. The content of sediment and minerals is high and turbid. Although it can't meet the requirements after sedimentation and filtration, it needs to add flocculant. The dosage of flocculant is 1/50 of inorganic flocculant, but the effect is several times that of inorganic flocculant. Inorganic flocculant and cationic flocculation of our company can be used for river water seriously polluted by organic matter. The effect of acrylamide is better.
3. Recycling of lost starch grains in starch factories and alcohol factories now contains a lot of starch in the wastewater of many starch factories. Anionic polyacrylamide is added to flocculate and precipitate starch particles, and then the precipitate is filtered into cake shape by pressure filter, which can be used as feed. Alcohol in alcohol factories can also be dehydrated by anionic polyacrylamide and reclaimed by pressure filter.
