CN107021562B - Environment-friendly ammonia nitrogen removal water treatment agent - Google Patents

Environment-friendly ammonia nitrogen removal water treatment agent Download PDF

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Publication number
CN107021562B
CN107021562B CN201710296211.8A CN201710296211A CN107021562B CN 107021562 B CN107021562 B CN 107021562B CN 201710296211 A CN201710296211 A CN 201710296211A CN 107021562 B CN107021562 B CN 107021562B
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ammonia nitrogen
sodium
stirrer
hydroxide
water treatment
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CN107021562A (en
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蔡彦娟
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Boao Zongheng Network Technology Co ltd
Jiangsu Yijing Water Treatment Chemical Co ltd
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Jiangsu Yijing Water Treatment Chemical Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia

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  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

An environment-friendly water treatment agent for removing ammonia nitrogen is prepared from the following raw materials: nitrite bacteria, polyacrylamide, tetrapropenyl sodium benzenesulfonate, nekal, polyferric chloride, sodium hydroxide, sodium hypochlorite, zeolite, zinc hydrogen phosphate, magnesium dihydrogen phosphate, aluminum hydroxide, magnesium hydroxide and phosphoric acid. The preparation method of the environment-friendly water treatment agent for removing ammonia nitrogen comprises the following steps: the method comprises the following steps: a. weighing polyacrylamide, sodium tetrapropenylbenzenesulfonate, nekal, polyferric chloride and deionized water, adding into a stirrer, and stirring uniformly. b. Sequentially adding sodium hydroxide, sodium hypochlorite, zeolite, zinc hydrogen phosphate, magnesium dihydrogen phosphate, aluminum hydroxide and magnesium hydroxide into a stirrer, and uniformly stirring. c. Adding nitrite bacteria into a stirrer, and stirring uniformly. d. Adding phosphoric acid into a stirrer, and uniformly stirring to obtain the treating agent. The water treatment agent for removing ammonia nitrogen provided by the invention has the advantages of low cost and high ammonia nitrogen removal efficiency, and is suitable for wide popularization.

Description

environment-friendly ammonia nitrogen removal water treatment agent
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to an environment-friendly water treatment agent for removing ammonia nitrogen.
background
In recent years, the aggravation of water pollution of water sources, the improvement of water quality standards of drinking water and the enhancement of environmental awareness of people bring severe challenges to the field of drinking water treatment in China. Ammonia nitrogen pollutants generally exist in water source water in China, and are difficult to remove by a conventional water treatment process, so that the ammonia nitrogen pollutants become one of main pollutants for drinking water treatment, and particularly, the ammonia nitrogen in a low-temperature stage is difficult to treat.
at present, the methods for removing ammonia nitrogen in the drinking water treatment process mainly comprise a physical chemical method and a biological method. (1) The breakpoint chlorination method is one of the main methods for removing ammonia nitrogen in drinking water production, has the characteristics of no influence of temperature, quick reaction and high efficiency, but has the problems of large dosage of liquid chlorine, high control requirement and easy generation of toxic and harmful byproducts. (2) The adsorption method for removing ammonia nitrogen is to remove ammonia nitrogen by physical and chemical methods such as adsorption or ion exchange by using an adsorbent, such as zeolite, a nano molecular sieve and the like. Although the adsorption method can achieve a relatively ideal effect on the removal of ammonia nitrogen, the removal rate is influenced by various factors such as the characteristics of an adsorbent, contact time, background components in water and the like, and the adsorption method also has the defects of limited adsorption capacity, frequent regeneration and the like. (3) The biological method for removing ammonia nitrogen is one of the most common methods for controlling ammonia nitrogen in drinking water, the principle is that the ammonia nitrogen in the water is removed by means of the metabolic activity of microorganisms attached to a filler, and the method has the characteristics of economy and simplicity in operation, and has a wide application space in the aspect of drinking water ammonia nitrogen control. However, the drinking water biological method ammonia nitrogen removal process is influenced by various factors such as temperature, water quality and the like, and particularly, the biological activity is inhibited in a low-temperature environment (such as half-year low-temperature stage of Harbin source water), so that the ammonia nitrogen removal efficiency is obviously reduced. Therefore, research and development of a water treatment technology for efficiently, economically and simply removing ammonia nitrogen and ensuring the water quality safety of drinking water become a difficult task for water treatment researchers.
Pollution treatment, energy conservation and emission reduction become important subjects for implementing sustainable development strategies in China, and ammonia nitrogen wastewater as an important pollutant of water eutrophication becomes the key point of treatment. After ammonia nitrogen wastewater is discharged into water bodies such as lakes, reservoirs, estuaries, gulfs and the like, eutrophication of the water bodies is caused, aquatic organisms, particularly algae, propagate in large quantities, the ecological balance of the water bodies is destroyed, and water quality deterioration and fish death are caused. Therefore, the ammonia nitrogen removal technology is becoming a hotspot for research, development and application in the field of wastewater treatment. Therefore, ammonia nitrogen in the wastewater must be treated.
At present, a plurality of processes for removing ammonia nitrogen are applied to water treatment engineering, such as an ozone activated carbon method, a breakpoint chlorine adding method, a biological method, a stripping method, an ammonia steaming method, a gas-water separation membrane method and the like. However, the above processes for removing ammonia nitrogen all have certain disadvantages, such as generation of triple pollution, secondary pollution to air, large equipment investment, high treatment cost and limited removal rate of ammonia nitrogen.
Disclosure of Invention
aiming at the problems in the prior art, the invention aims to provide the environment-friendly ammonia nitrogen removing water treatment agent which is low in cost and high in ammonia nitrogen removing efficiency.
in order to achieve the effect, the invention is realized by the following technical scheme:
An environment-friendly water treatment agent for removing ammonia nitrogen is prepared from the following raw materials: nitrite bacteria, polyacrylamide, tetrapropenyl sodium benzenesulfonate, nekal, polyferric chloride, sodium hydroxide, sodium hypochlorite, zeolite, zinc hydrogen phosphate, magnesium dihydrogen phosphate, aluminum hydroxide, magnesium hydroxide and phosphoric acid.
the raw materials comprise, by weight, 180 ~ 220g of nitrite bacteria, 6 ~ 10g of polyacrylamide, 45 ~ 55g of tetrapropenyl sodium benzenesulfonate, 25 ~ 35g of nekal, 75 ~ 85g of polyferric chloride, 15 ~ 25g of sodium hydroxide, 20 ~ 30g of sodium hypochlorite, 15 ~ 25g of zeolite, 6 ~ 10g of zinc hydrogen phosphate, 8 ~ 12g of magnesium dihydrogen phosphate, 12 ~ 18g of aluminum hydroxide, 18 ~ 22g of magnesium hydroxide and 18 ~ 22g of phosphoric acid.
Part of the components of the environment-friendly ammonia nitrogen removal water treatment agent have the following functions:
Tetrapropenyl sodium benzenesulfonate is sensitive to water hardness, not easy to oxidize, strong in foaming power, high in detergency, easy to be compounded with various assistants, low in cost and very excellent in anionic surfactant.
Polyacrylamide (PAM) -is a linear organic high molecular polymer and is a high molecular water treatment flocculant product, can adsorb suspended particles in water, plays a role in bridging among the particles, enables fine particles to form larger flocs, and accelerates the speed of precipitation. This process is called flocculation, and PAM is widely used as a flocculant for water treatment because of its good flocculation effect.
Polyferric chloride, a novel high-efficiency inorganic polymer coagulant, has good flocculation effect and low price, and has better water purification effect than the traditional aluminum sulfate, iron salt and other common inorganic salt coagulants. The polyaluminum ferric chloride is very soluble in water, and can be used for treating drinking water, industrial wastewater and domestic sewage. The coagulation effect is characterized by reduced residual turbidity chroma, floc forming blocks, high adsorption performance, good sludge filtration and dehydration performance and the like, and particularly, the treatment effect is better than that of alum, polyaluminium chloride, polyferric sulfate and ferric trioxide when high-turbidity water and low-temperature low-turbidity water are treated. Wherein, the effect of the purification treatment of low-temperature and low-turbidity water is particularly obvious.
zinc phosphate, inorganic nitrogen and phosphorus and trace elements necessary for the growth of nitrobacteria, and also contains growth-promoting substances, so that the growth speed of the nitrobacteria can be increased.
Nitrite bacteria, a class of bacteria that eliminate (via oxidation) ammonia in aquatic ecosystems and produce nitrous acid, the bacterium of the genus nitrite, commonly referred to as the "oxidator of ammonia," is sufficiently viable because its food source is ammonia, and the chemical energy generated by the combination of ammonia and oxygen. Bacteria capable of oxidizing nitrous acid molecules and converting the nitrous acid molecules into nitric acid molecules. Bacteria of the genus nitrobacteria, commonly referred to as "oxidators of nitrous acid", are capable of generating nitric acid by combination with oxygen, as their food source is nitrous acid (although this is not necessarily nitrous acid, other organic matter is possible), and the chemical energy generated is sufficient to enable them to survive. The nitrifying bacteria can decompose and remove toxic chemicals (ammonia and nitrous acid) in water, so that the water quality can be purified.
Magnesium dihydrogen phosphate, which is inorganic nitrogen phosphorus and trace elements necessary for the growth of nitrobacteria, also comprises a growth-promoting substance, and can accelerate the growth of the nitrobacteria.
Magnesium hydroxide: reacting with ammonia nitrogen particles in water together with phosphoric acid to generate MgNH4PO4.6H2O (struvite) precipitate, and granulating the precipitate to obtain the compound fertilizer.
The preparation method of the environment-friendly water treatment agent for removing ammonia nitrogen comprises the following steps:
a. Weighing polyacrylamide, sodium tetrapropenylbenzenesulfonate, nekal, polyferric chloride and deionized water, adding into a stirrer, and stirring uniformly;
b. Sequentially adding sodium hydroxide, sodium hypochlorite, zeolite, zinc hydrogen phosphate, magnesium dihydrogen phosphate, aluminum hydroxide and magnesium hydroxide into a stirrer, and uniformly stirring;
c. adding nitrite bacteria into a stirrer, and uniformly stirring;
d. Adding phosphoric acid into a stirrer, and uniformly stirring to obtain the treating agent.
The invention has the beneficial effects that: the water treatment agent for removing ammonia nitrogen provided by the invention has low cost, can quickly remove ammonia nitrogen in water by adopting a microorganism ammonia nitrogen removal method and a precipitation method, better plays roles of oxidation, adsorption, flocculation, precipitation, sterilization, disinfection and the like, has high ammonia nitrogen removal efficiency, and is suitable for wide popularization.
Detailed Description
For easy understanding, the technical solution of the present invention is further described in detail by examples:
Example 1:
an environment-friendly water treatment agent for removing ammonia nitrogen is prepared from the following raw materials: nitrite bacteria, polyacrylamide, tetrapropenyl sodium benzenesulfonate, nekal, polyferric chloride, sodium hydroxide, sodium hypochlorite, zeolite, zinc hydrogen phosphate, magnesium dihydrogen phosphate, aluminum hydroxide, magnesium hydroxide and phosphoric acid.
The raw materials comprise the following components in parts by weight:
200g of nitrite bacteria, 8g of polyacrylamide, 50g of tetrapropenyl sodium benzenesulfonate, 30g of nekal, 80g of polyferric chloride, 20g of sodium hydroxide, 25g of sodium hypochlorite, 20g of zeolite, 8g of zinc hydrogen phosphate, 10g of magnesium dihydrogen phosphate, 15g of aluminum hydroxide, 20g of magnesium hydroxide and 20g of phosphoric acid.
the preparation process of the environment-friendly water treatment agent for removing ammonia nitrogen comprises the following steps:
a. Weighing 8g of polyacrylamide, 50g of tetrapropenyl sodium benzenesulfonate, 30g of nekal, 80g of polyferric chloride and 0.1 ton of deionized water, adding into a stirrer, and stirring uniformly.
b. and (b) sequentially adding 20g of sodium hydroxide, 25g of sodium hypochlorite, 20g of zeolite, 8g of zinc hydrogen phosphate, 10g of magnesium dihydrogen phosphate, 15g of aluminum hydroxide and 20g of magnesium hydroxide into the stirrer in the step a, and stirring for thirty minutes.
c. and (b) adding 200g of nitrite bacteria into the stirrer in the step (b), stirring for ten minutes, and uniformly stirring.
d. And (c) adding 20g of phosphoric acid into the stirrer in the step (c), stirring for ten minutes, and uniformly stirring to obtain the treating agent.
Example 2:
an environment-friendly water treatment agent for removing ammonia nitrogen is prepared from the following raw materials: nitrite bacteria, polyacrylamide, tetrapropenyl sodium benzenesulfonate, nekal, polyferric chloride, sodium hydroxide, sodium hypochlorite, zeolite, zinc hydrogen phosphate, magnesium dihydrogen phosphate, aluminum hydroxide, magnesium hydroxide and phosphoric acid.
the raw materials comprise the following components in parts by weight: 180g of nitrite bacteria, 6g of polyacrylamide, 45g of tetrapropenyl sodium benzenesulfonate, 25g of nekal, 75g of polyferric chloride, 15g of sodium hydroxide, 20g of sodium hypochlorite, 15g of zeolite, 6g of zinc hydrogen phosphate, 8g of magnesium dihydrogen phosphate, 12g of aluminum hydroxide, 18g of magnesium hydroxide and 18g of phosphoric acid.
The preparation process of the environment-friendly water treatment agent for removing ammonia nitrogen comprises the following steps:
a. 6g of polyacrylamide, 45g of tetrapropenyl sodium benzenesulfonate, 25g of nekal, 75g of polyferric chloride and 0.1 ton of deionized water are weighed and added into a stirrer to be uniformly stirred.
b. And (b) sequentially adding 15g of sodium hydroxide, 20g of sodium hypochlorite, 15g of zeolite, 6g of zinc hydrogen phosphate, 8g of magnesium dihydrogen phosphate, 12g of aluminum hydroxide and 18g of magnesium hydroxide into the stirrer in the step a, and stirring for thirty minutes.
c. And (b) adding 180g of nitrite bacteria into the stirrer in the step (b), stirring for ten minutes, and uniformly stirring.
d. And (c) adding 18g of phosphoric acid into the stirrer in the step (c), stirring for ten minutes, and uniformly stirring to obtain the treating agent.
example 3:
An environment-friendly water treatment agent for removing ammonia nitrogen is prepared from the following raw materials: nitrite bacteria, polyacrylamide, tetrapropenyl sodium benzenesulfonate, nekal, polyferric chloride, sodium hydroxide, sodium hypochlorite, zeolite, zinc hydrogen phosphate, magnesium dihydrogen phosphate, aluminum hydroxide, magnesium hydroxide and phosphoric acid.
The raw materials comprise the following components in parts by weight: 220g of nitrite bacteria, 10g of polyacrylamide, 55g of tetrapropenyl sodium benzenesulfonate, 35g of nekal, 85g of polyferric chloride, 25g of sodium hydroxide, 30g of sodium hypochlorite, 25g of zeolite, 10g of zinc hydrogen phosphate, 12g of magnesium dihydrogen phosphate, 18g of aluminum hydroxide, 22g of magnesium hydroxide and 22g of phosphoric acid.
The preparation process of the environment-friendly water treatment agent for removing ammonia nitrogen comprises the following steps:
a. Weighing 10g of polyacrylamide, 55g of tetrapropenylsodium benzenesulfonate, 35g of nekal, 85g of polyferric chloride and 0.1 ton of deionized water, adding into a stirrer, and stirring uniformly.
b. And (b) sequentially adding 25g of sodium hydroxide, 30g of sodium hypochlorite, 25g of zeolite, 10g of zinc hydrogen phosphate, 12g of magnesium dihydrogen phosphate, 18g of aluminum hydroxide and 22g of magnesium hydroxide into the stirrer in the step a, and stirring for thirty minutes.
c. And (b) adding 220g of nitrite bacteria into the stirrer in the step (b), stirring for ten minutes, and uniformly stirring.
d. And (c) adding 22g of phosphoric acid into the stirrer in the step (c), stirring for ten minutes, and uniformly stirring to obtain the treating agent.
the above embodiments are merely illustrative or explanatory of the technical solution of the present invention and should not be construed as limiting the technical solution of the present invention, and it is apparent that various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the present invention. The present invention also encompasses these modifications and variations provided they come within the scope of the claims and their equivalents.

Claims (2)

1. An environment-friendly water treatment agent for removing ammonia nitrogen is characterized in that: the health-care food is prepared from the following raw materials in parts by weight: 180-220 g of nitrite bacteria, 6-10 g of polyacrylamide, 45-55 g of tetrapropenyl sodium benzenesulfonate, 25-35 g of nekal, 75-85 g of polyferric chloride, 15-25 g of sodium hydroxide, 20-30 g of sodium hypochlorite, 15-25 g of zeolite, 6-10 g of zinc hydrogen phosphate, 8-12 g of magnesium dihydrogen phosphate, 12-18 g of aluminum hydroxide, 18-22 g of magnesium hydroxide and 18-22 g of phosphoric acid.
2. The method for preparing the environment-friendly ammonia nitrogen removing water treatment agent according to claim 1: the method is characterized in that: the method comprises the following steps:
a. weighing polyacrylamide, sodium tetrapropenylbenzenesulfonate, nekal, polyferric chloride and deionized water, adding into a stirrer, and stirring uniformly;
b. Sequentially adding sodium hydroxide, sodium hypochlorite, zeolite, zinc hydrogen phosphate, magnesium dihydrogen phosphate, aluminum hydroxide and magnesium hydroxide into a stirrer, and uniformly stirring;
c. Adding nitrite bacteria into a stirrer, and uniformly stirring;
d. Adding phosphoric acid into a stirrer, and uniformly stirring to obtain the treating agent.
CN201710296211.8A 2017-04-28 2017-04-28 Environment-friendly ammonia nitrogen removal water treatment agent Active CN107021562B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111115846A (en) * 2019-12-30 2020-05-08 漳州傲农现代农业开发有限公司 Sewage treatment agent for aquaculture wastewater and preparation method and application thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011107984A3 (en) * 2010-03-01 2011-11-10 Technion- Research And Development Foundation Ltd. System and process for the treatment of wastewater comprising organic materials, phosphate and ammonium
CN102952765A (en) * 2011-08-31 2013-03-06 中国石油化工股份有限公司 Enrichment culture method of salt-tolerant efficient nitrosobacteria
CN105016494A (en) * 2015-07-30 2015-11-04 陈朝民 Composite water treatment agent
CN105217802A (en) * 2015-10-29 2016-01-06 余姜 A kind of water quality cleansing agent
CN106186235A (en) * 2016-08-22 2016-12-07 陈永桥 A kind of high-efficiency sewage ammonia nitrogen removal agent
CN106497846A (en) * 2016-12-14 2017-03-15 钦州学院 A kind of wastewater treatment microbial microbial inoculum and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011107984A3 (en) * 2010-03-01 2011-11-10 Technion- Research And Development Foundation Ltd. System and process for the treatment of wastewater comprising organic materials, phosphate and ammonium
CN102952765A (en) * 2011-08-31 2013-03-06 中国石油化工股份有限公司 Enrichment culture method of salt-tolerant efficient nitrosobacteria
CN105016494A (en) * 2015-07-30 2015-11-04 陈朝民 Composite water treatment agent
CN105217802A (en) * 2015-10-29 2016-01-06 余姜 A kind of water quality cleansing agent
CN106186235A (en) * 2016-08-22 2016-12-07 陈永桥 A kind of high-efficiency sewage ammonia nitrogen removal agent
CN106497846A (en) * 2016-12-14 2017-03-15 钦州学院 A kind of wastewater treatment microbial microbial inoculum and preparation method thereof

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