CN103755107B - Urban recycled water deep-treatment method - Google Patents
Urban recycled water deep-treatment method Download PDFInfo
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- CN103755107B CN103755107B CN201410057403.XA CN201410057403A CN103755107B CN 103755107 B CN103755107 B CN 103755107B CN 201410057403 A CN201410057403 A CN 201410057403A CN 103755107 B CN103755107 B CN 103755107B
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Abstract
The invention discloses an urban recycled water deep-treatment method. The COD (chemical oxygen demand) value of the recycled water is 65-95 mg/L. The method is characterized by comprising a coal ash adsorbent treatment step, a biological deodorant treatment step, a biological purifier treatment step and a modified zeolite adsorption treatment step which are carried out in sequence. According to the method, a coal ash adsorbent can be used for adsorbing large-grained organic matters in the water, a biological deodorant can be used for removing the peculiar smell from the water, a biological purifier can be used for consuming residual organic matters in the water, and modified zeolite can be used for efficiently removing calcium magnesium ions, fluorine ions and other heavy metal ions from the wastewater.
Description
Technical field
The invention belongs to municipal sewage treatment field of Environment Protection, particularly relate to a kind of deep treatment method of municipal middle water.
Background technology
Middle water, also claims reuse water, and refer to that sewage is after suitably processing, and reaches certain water-quality guideline, meets certain service requirements, can carry out the water of useful use, a large amount of middle water is used as landscape water.Municipal middle water (hereinafter referred to as middle water), as the second water source in city, has that the water yield is large, water conditioning, from the horse's mouth and do not need the features such as long distance water diversion, is a kind of regenerated water source of Sustainable development from now on.Treated sewage reusing effectively can solve water resources deficiency, improves water resources repeating utilization factor and reduce sewage discharge, has huge social benefit and good economic benefit.Although the Pollutant levels in middle water reach discharging standards, water quality is also better than industrial sewage, has some indexs still poor, can not meet the requirement of industrial production to water quality, as COD, suspended substance and microorganism etc.Therefore, municipal middle water could reuse after must suitably processing.
If municipal middle water processes bad, body eutrophication can be caused, water ecological environment constantly worsens, sense organ shows as algae in water increases by geometric progression, transparency and dissolved oxygen decline, water quality deterioration in water, presents different colours, animals and plants and human health in harm water, make Ecology and water function be hindered and destroy, water taste becomes stench, and water clarity declines, water body is muddy, makes the aesthetic values such as landscape water body forfeiture is viewed and admired, amusement.Therefore, improve the advanced treatment dynamics of municipal middle water, making it not damage human body, animal body, water body for ensureing during landscape water, is a large technical study focus in this area.
Summary of the invention
In order to overcome deficiency of the prior art, the object of this invention is to provide a kind of deep treatment method of municipal middle water, advanced treatment is carried out to municipal middle water, contaminant removal efficiency is high, stable effluent quality, pollutent is removed substantially, can meet landscape water and put into requirement.
Technical scheme of the present invention is as follows.
A deep treatment method for municipal middle water, the COD value of described middle water between 65-95mg/L, described method comprise carry out in turn fly ash absorbent process, biological deodorant process, biological cleanser process, modified zeolite adsorption treatment; Be specially:
(1) fly ash absorbent process: middle water is introduced in flyash treating pond, Xiang Chizhong drops into fly ash absorbent centering water and carries out pre-treatment, fly ash absorbent adds weight and middle water weight ratio is routine at (0.8-2.8): between 100, the treatment time is 3-36h; Described fly ash absorbent is prepared by the following method: (A), according to parts by weight: unslaked lime 10-15 part, polynite 5-9 part, vermiculite 1-5 part, clay 2-20 part, methylcellulose gum 2-6 part, Sodium Bromide 1-2 part, aluminum oxide 5-10 part, flyash 100-240 part, each raw material is mixed, adding water and making diameter is 35-45mm spheroidal particle, then at 950-980 DEG C, sinters 2-3h at tunnel furnace, obtains fly ash absorbent precursor after cooling; (B), preparing volumetric molar concentration is the aqueous sodium bromide of 1-1.5mol/L, the fly ash absorbent precursor that step (A) obtains is poured in described aqueous sodium bromide and carries out dip treating 16-24h, (C), by after the fly ash absorbent precursor of step (B) dip treating puts into vacuum drying oven drying treatment 10-20h, fly ash absorbent is obtained;
(2) biological deodorant process: water in fly ash absorbent process is introduced in biological deodorization tank, Xiang Chizhong adds biological deodorant, biological deodorant adds weight and middle water weight ratio is routine at (0.1-0.8): between 100, the treatment time is 3-5 days; The microbial strains of described biological deodorant consists of: Lactobacterium acidophilum 10
6-10
9individual/mL, bacillus pumilus 10
6-10
9individual/mL, subtilis 10
6-10
9individual/mL, Pseudomonas fluorescens 10
5-10
7individual/mL, Rhodopseudomonas palustris 10
5-10
7individual/mL, class figure British mold 10
4-10
6individual/mL, candida inconspicua bacterium 10
4-10
6individual/mL, expansion mould 10
4-10
6individual/mL, Rhizopus oryzae 10
4-10
6individual/mL, viride 10
4-10
6individual/mL, streptomyces microflavus 10
4-10
6individual/mL and streptomyces griseus 10
4-10
6individual/mL;
(3) biological cleanser process: water in biological deodorant process is introduced in biological purifying tank, Xiang Chizhong adds biological cleanser, biological cleanser adds weight and middle water weight ratio is routine at (0.8-6.8): between 100, treatment time is 5-9 days, and adjustment aeration condition makes the amount of the dissolved oxygen in middle water be 3-4mg/L; Bacterial classification in described biological cleanser comprises Rhodopseudomonas rutila, Streptomyces jingyangensis, and streptococcus acidi lactici, and the substratum of described bacterial classification is made up of the component of following masses ratio: brown sugar 5-6%, yeast powder 1-2%, and surplus is water;
(4) modified zeolite adsorption treatment: use water in biological cleanser process lift pump be delivered to be positioned at the adsorption tower water-in bottom adsorption tower after filtering, adsorption tower is filled with nonwoven layer, quartz sand layer and modified zeolite layer from the bottom up successively, wherein, the thickness of nonwoven layer is between 2-20mm, the thickness ratio of quartz sand layer and modified zeolite layer is 1:(0.5-0.8), water flows out from the adsorption tower water outlet being positioned at adsorption tower top, through pump delivery to aqua storage tank, it is advanced treatment product water.
In the art, the method for modified zeolite has two types: a class is the modification to zeolite framework element, and another kind of is modification to non-skeleton elements.Acid-alkali treatment modification etc. is comprised to the modification of backbone element, coordination chemistry in ion-exchanged, zeolite, surfactant-modified etc. is comprised to the modification of non-skeleton elements.In the present invention, modified zeolite is the zeolite that method of modifying modification conventional in this area obtains, and such as, using the zeolite of sodium chloride solution modification in prior art, also can be the zeolite of specific method of modifying modification.Typically, the zeolite that conventional method of modifying modification obtains slightly is weaker than the zeolite of specific method of modifying modification on adsorption effect, but still can reach technique effect of the present invention.
Preferably, described modified zeolite is modified mordenite, modification procedure is: mordenite, kaolin, silicon magnesium glue, sesbania powder and phosphoric acid are mixed according to part by weight 60:30:30:20:20, then add water and be prepared into the slurries that solid content is 50-55%; Slurries spray dried into powder form particle, then by powdered granule in retort furnace in 500-700 DEG C of roasting 3-5h, be then cooled to room temperature, obtain modified zeolite, wherein the volumetric molar concentration of phosphoric acid is 0.9-1.3mol/L, be preferably 1.0mol/L.
Described mordenite is commercially available mordenite, or the available mordenite of those skilled in the art, the present invention finds, mordenite is due to its specific structure, in absorption effluent, there is in metal ion good effect, after the adsorption treatment of modified mordenite, water pollutant reduces further.
In the present invention, by carrying out advanced treatment to municipal middle water, and through fly ash absorbent process, biological deodorant process, biological cleanser process, modified zeolite adsorption treatment, stable effluent quality, reach the requirement of landscape water, fly ash absorbent can macrobead organic substance in planar water, biological deodorant can eliminate in peculiar smell in water, remaining organism during biological cleanser can consume in water, modified zeolite can remove calcium ions and magnesium ions in sewage, fluorion and other heavy metal ion efficiently.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is further elaborated.
Embodiment 1
A deep treatment method for municipal middle water, the COD value of described middle water is 95mg/L, described method comprise carry out in turn fly ash absorbent process, biological deodorant process, biological cleanser process, modified zeolite adsorption treatment; Be specially:
(1) fly ash absorbent process: middle water is introduced in flyash treating pond, Xiang Chizhong drops into fly ash absorbent centering water and carries out pre-treatment, and fly ash absorbent adds weight and middle water weight ratio is routine between 2.8:100, and the treatment time is 36h; Described fly ash absorbent is prepared by the following method: (A), according to parts by weight: unslaked lime 15 parts, polynite 9 parts, vermiculite 5 parts, clay 20 parts, methylcellulose gum 6 parts, Sodium Bromide 2 parts, 10 parts, aluminum oxide, 240 parts, flyash, each raw material is mixed, adding water and making diameter is 45mm spheroidal particle, then at 980 DEG C, sinters 3h at tunnel furnace, obtains fly ash absorbent precursor after cooling; (B), preparing volumetric molar concentration is the aqueous sodium bromide of 1.5mol/L, the fly ash absorbent precursor that step (A) obtains is poured in described aqueous sodium bromide and carries out dip treating 24h, (C), by after the fly ash absorbent precursor of step (B) dip treating puts into vacuum drying oven drying treatment 20h, fly ash absorbent is obtained;
(2) biological deodorant process: introduced in biological deodorization tank by water in fly ash absorbent process, Xiang Chizhong adds biological deodorant, biological deodorant adds weight and middle water weight ratio is routine between 0.8:100, and the treatment time is 5 days; The microbial strains of described biological deodorant consists of: Lactobacterium acidophilum 10
6-10
9individual/mL, bacillus pumilus 10
6-10
9individual/mL, subtilis 10
6-10
9individual/mL, Pseudomonas fluorescens 10
5-10
7individual/mL, Rhodopseudomonas palustris 10
5-10
7individual/mL, class figure British mold 10
4-10
6individual/mL, candida inconspicua bacterium 10
4-10
6individual/mL, expansion mould 10
4-10
6individual/mL, Rhizopus oryzae 10
4-10
6individual/mL, viride 10
4-10
6individual/mL, streptomyces microflavus 10
4-10
6individual/mL and streptomyces griseus 10
4-10
6individual/mL;
(3) biological cleanser process: water in biological deodorant process is introduced in biological purifying tank, Xiang Chizhong adds biological cleanser, biological cleanser adds weight and middle water weight ratio is routine between 6.8:100, treatment time is 9 days, and adjustment aeration condition makes the amount of the dissolved oxygen in middle water be 4mg/L; Bacterial classification in described biological cleanser comprises Rhodopseudomonas rutila, Streptomyces jingyangensis, and streptococcus acidi lactici, and the substratum of described bacterial classification is made up of the component of following masses ratio: brown sugar 5-6%, yeast powder 1-2%, and surplus is water;
(4) modified zeolite adsorption treatment: use water in biological cleanser process lift pump be delivered to be positioned at the adsorption tower water-in bottom adsorption tower after filtering, adsorption tower is filled with nonwoven layer, quartz sand layer and modified zeolite layer from the bottom up successively, wherein, the thickness of nonwoven layer is 20mm, the thickness ratio of quartz sand layer and modified zeolite layer is 1:0.8, water flows out from the adsorption tower water outlet being positioned at adsorption tower top, through pump delivery to aqua storage tank, is advanced treatment product water.
Modified zeolite in the present embodiment is sodium-chlor modified zeolite, its preparation method is be load the zeolite that particle diameter is 0.5 ~ 1.0mm in the synthetic glass post of 14mm at internal diameter, properties-correcting agent NaCl solution with the flow velocity of 0.5m/h by zeolite layer to ion-exchange completely.
Embodiment 2
A deep treatment method for municipal middle water, the COD value of described middle water is 65mg/L, described method comprise carry out in turn fly ash absorbent process, biological deodorant process, biological cleanser process, modified zeolite adsorption treatment; Be specially:
(1) fly ash absorbent process: middle water is introduced in flyash treating pond, Xiang Chizhong drops into fly ash absorbent centering water and carries out pre-treatment, and fly ash absorbent adds weight and middle water weight ratio is routine between 0.8:100, and the treatment time is 3h; Described fly ash absorbent is prepared by the following method: (A), according to parts by weight: unslaked lime 10 parts, polynite 5 parts, vermiculite 1 part, clay 2 parts, methylcellulose gum 2 parts, Sodium Bromide 1 part, 5 parts, aluminum oxide, 100 parts, flyash, each raw material is mixed, adding water and making diameter is 35mm spheroidal particle, then at 950 DEG C, sinters 2h at tunnel furnace, obtains fly ash absorbent precursor after cooling; (B), preparing volumetric molar concentration is the aqueous sodium bromide of 1mol/L, the fly ash absorbent precursor that step (A) obtains is poured in described aqueous sodium bromide and carries out dip treating 16h, (C), by after the fly ash absorbent precursor of step (B) dip treating puts into vacuum drying oven drying treatment 10h, fly ash absorbent is obtained;
(2) biological deodorant process: introduced in biological deodorization tank by water in fly ash absorbent process, Xiang Chizhong adds biological deodorant, biological deodorant adds weight and middle water weight ratio is routine between 0.1:100, and the treatment time is 3 days; The microbial strains of described biological deodorant consists of: Lactobacterium acidophilum 10
6-10
9individual/mL, bacillus pumilus 10
6-10
9individual/mL, subtilis 10
6-10
9individual/mL, Pseudomonas fluorescens 10
5-10
7individual/mL, Rhodopseudomonas palustris 10
5-10
7individual/mL, class figure British mold 10
4-10
6individual/mL, candida inconspicua bacterium 10
4-10
6individual/mL, expansion mould 10
4-10
6individual/mL, Rhizopus oryzae 10
4-10
6individual/mL, viride 10
4-10
6individual/mL, streptomyces microflavus 10
4-10
6individual/mL and streptomyces griseus 10
4-10
6individual/mL;
(3) biological cleanser process: water in biological deodorant process is introduced in biological purifying tank, Xiang Chizhong adds biological cleanser, biological cleanser adds weight and middle water weight ratio is routine between 0.8:100, treatment time is 5 days, and adjustment aeration condition makes the amount of the dissolved oxygen in middle water be 3mg/L; Bacterial classification in described biological cleanser comprises Rhodopseudomonas rutila, Streptomyces jingyangensis, and streptococcus acidi lactici, and the substratum of described bacterial classification is made up of the component of following masses ratio: brown sugar 5-6%, yeast powder 1-2%, and surplus is water;
(4) modified zeolite adsorption treatment: use water in biological cleanser process lift pump be delivered to be positioned at the adsorption tower water-in bottom adsorption tower after filtering, adsorption tower is filled with nonwoven layer, quartz sand layer and modified zeolite layer from the bottom up successively, wherein, the thickness of nonwoven layer is 2mm, the thickness ratio of quartz sand layer and modified zeolite layer is 1:0.5, water flows out from the adsorption tower water outlet being positioned at adsorption tower top, through pump delivery to aqua storage tank, is advanced treatment product water; Described modified zeolite is modified mordenite, and modification procedure is: mordenite, kaolin, silicon magnesium glue, sesbania powder and phosphoric acid are mixed according to part by weight 60:30:30:20:20, then add water and be prepared into the slurries that solid content is 50-55%; Slurries spray dried into powder form particle, then by powdered granule in retort furnace in 500-700 DEG C of roasting 3-5h, be then cooled to room temperature, obtain modified zeolite, wherein the volumetric molar concentration of phosphoric acid is 1.3mol/L.
Embodiment 3
A deep treatment method for municipal middle water, the COD value of described middle water is 70mg/L, described method comprise carry out in turn fly ash absorbent process, biological deodorant process, biological cleanser process, modified zeolite adsorption treatment; Be specially:
(1) fly ash absorbent process: middle water is introduced in flyash treating pond, Xiang Chizhong drops into fly ash absorbent centering water and carries out pre-treatment, and fly ash absorbent adds weight and middle water weight ratio is routine between 0.8:100, and the treatment time is 3h; Described fly ash absorbent is prepared by the following method: (A), according to parts by weight: unslaked lime 10 parts, polynite 5 parts, vermiculite 1 part, clay 2 parts, methylcellulose gum 2 parts, Sodium Bromide 1 part, 5 parts, aluminum oxide, 100 parts, flyash, each raw material is mixed, adding water and making diameter is 35mm spheroidal particle, then at 950 DEG C, sinters 2h at tunnel furnace, obtains fly ash absorbent precursor after cooling; (B), preparing volumetric molar concentration is the aqueous sodium bromide of 1mol/L, the fly ash absorbent precursor that step (A) obtains is poured in described aqueous sodium bromide and carries out dip treating 16h, (C), by after the fly ash absorbent precursor of step (B) dip treating puts into vacuum drying oven drying treatment 10h, fly ash absorbent is obtained;
(2) biological deodorant process: introduced in biological deodorization tank by water in fly ash absorbent process, Xiang Chizhong adds biological deodorant, biological deodorant adds weight and middle water weight ratio is routine at 0.1:100, and the treatment time is 3 days; The microbial strains of described biological deodorant consists of: Lactobacterium acidophilum 10
8-10
9individual/mL, bacillus pumilus 10
8-10
9individual/mL, subtilis 10
6-10
7individual/mL, Pseudomonas fluorescens 10
6-10
7individual/mL, Rhodopseudomonas palustris 10
6-10
7individual/mL, class figure British mold 10
5-10
6individual/mL, candida inconspicua bacterium 10
5-10
6individual/mL, expansion mould 10
5-10
6individual/mL, Rhizopus oryzae 10
5-10
6individual/mL, viride 10
5-10
6individual/mL, streptomyces microflavus 10
5-10
6individual/mL and streptomyces griseus 10
5-10
6individual/mL;
(3) biological cleanser process: water in biological deodorant process is introduced in biological purifying tank, Xiang Chizhong adds biological cleanser, biological cleanser adds weight and middle water weight ratio is routine at 0.8:100, treatment time is 5 days, and adjustment aeration condition makes the amount of the dissolved oxygen in middle water be 3mg/L; Bacterial classification in described biological cleanser comprises Rhodopseudomonas rutila, Streptomyces jingyangensis, and streptococcus acidi lactici, and the substratum of described bacterial classification is made up of the component of following masses ratio: brown sugar 5%, yeast powder 2%, and surplus is water;
(4) modified zeolite adsorption treatment: use water in biological cleanser process lift pump be delivered to be positioned at the adsorption tower water-in bottom adsorption tower after filtering, adsorption tower is filled with nonwoven layer, quartz sand layer and modified zeolite layer from the bottom up successively, wherein, the thickness of nonwoven layer is 20mm, the thickness ratio of quartz sand layer and modified zeolite layer is 1:0.8, water flows out from the adsorption tower water outlet being positioned at adsorption tower top, through pump delivery to aqua storage tank, is advanced treatment product water; Described modified zeolite is modified mordenite, and modification procedure is: mordenite, kaolin, silicon magnesium glue, sesbania powder and phosphoric acid are mixed according to part by weight 60:30:30:20:20, then add water and be prepared into the slurries that solid content is 55%; Slurries spray dried into powder form particle, then by powdered granule in retort furnace in 500 DEG C of roasting 3h, be then cooled to room temperature, obtain modified zeolite, wherein the volumetric molar concentration of phosphoric acid is 0.9mol/L.
In order to the product water water quality of testing example 1,2,3, the product water that embodiment 1,2,3 obtains by contriver detects according to " urban wastewater treatment firm pollutant emission standard GB18918-2002 ", detected result is as shown in table 1, can find out, water quality is all better than country-level A standard, can be used in landscape water.
Table 1 is the result of embodiment 1,2.
Although above-described embodiment is to invention has been detailed description; but it is only the present invention's part embodiment; instead of whole embodiment, people can also obtain other embodiments according to the present embodiment under without creative prerequisite, and these embodiments all belong to protection scope of the present invention.
Claims (1)
1. the deep treatment method of a municipal middle water, the COD value of described middle water is between 65-95mg/L, it is characterized in that, described method comprise carry out in turn fly ash absorbent process, biological deodorant process, biological cleanser process, modified zeolite adsorption treatment; Be specially:
(1) fly ash absorbent process: middle water is introduced in flyash treating pond, Xiang Chizhong drops into fly ash absorbent centering water and carries out pre-treatment, fly ash absorbent adds weight and middle water weight ratio is routine at (0.8-2.8): between 100, the treatment time is 3-36h; Described fly ash absorbent is prepared by the following method: (A), according to parts by weight: unslaked lime 10-15 part, polynite 5-9 part, vermiculite 1-5 part, clay 2-20 part, methylcellulose gum 2-6 part, Sodium Bromide 1-2 part, aluminum oxide 5-10 part, flyash 100-240 part, each raw material is mixed, adding water and making diameter is 35-45mm spheroidal particle, then at 950-980 DEG C, sinters 2-3h at tunnel furnace, obtains fly ash absorbent precursor after cooling; (B), preparing volumetric molar concentration is the aqueous sodium bromide of 1-1.5mol/L, the fly ash absorbent precursor that step (A) obtains is poured in described aqueous sodium bromide and carries out dip treating 16-24h, (C), by after the fly ash absorbent precursor of step (B) dip treating puts into vacuum drying oven drying treatment 10-20h, fly ash absorbent is obtained;
(2) biological deodorant process: water in fly ash absorbent process is introduced in biological deodorization tank, Xiang Chizhong adds biological deodorant, biological deodorant adds weight and middle water weight ratio is routine at (0.1-0.8): between 100, the treatment time is 3-5 days; The microbial strains of described biological deodorant consists of: Lactobacterium acidophilum 10
6-10
9individual/mL, bacillus pumilus 10
6-10
9individual/mL, subtilis 10
6-10
9individual/mL, Pseudomonas fluorescens 10
5-10
7individual/mL, Rhodopseudomonas palustris 10
5-10
7individual/mL, class figure British mold 10
4-10
6individual/mL, candida inconspicua bacterium 10
4-10
6individual/mL, expansion mould 10
4-10
6individual/mL, Rhizopus oryzae 10
4-10
6individual/mL, viride 10
4-10
6individual/mL, streptomyces microflavus 10
4-10
6individual/mL and streptomyces griseus 10
4-10
6individual/mL;
(3) biological cleanser process: water in biological deodorant process is introduced in biological purifying tank, Xiang Chizhong adds biological cleanser, biological cleanser adds weight and middle water weight ratio is routine at (0.8-6.8): between 100, treatment time is 5-9 days, and adjustment aeration condition makes the amount of the dissolved oxygen in middle water be 3-4mg/L; Bacterial classification in described biological cleanser comprises Rhodopseudomonas rutila, Streptomyces jingyangensis, and streptococcus acidi lactici, and the substratum of described bacterial classification is made up of the component of following masses ratio: brown sugar 5-6%, yeast powder 1-2%, and surplus is water;
(4) modified zeolite adsorption treatment: use water in biological cleanser process lift pump be delivered to be positioned at the adsorption tower water-in bottom adsorption tower after filtering, adsorption tower is filled with nonwoven layer, quartz sand layer and modified zeolite layer from the bottom up successively, wherein, the thickness of nonwoven layer is between 2-20mm, the thickness ratio of quartz sand layer and modified zeolite layer is 1:(0.5-0.8), water flows out from the adsorption tower water outlet being positioned at adsorption tower top, through pump delivery to aqua storage tank, it is advanced treatment product water.
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| CN201410057403.XA CN103755107B (en) | 2014-02-20 | 2014-02-20 | Urban recycled water deep-treatment method |
| CN201510114472.4A CN104710079B (en) | 2014-02-20 | 2014-02-20 | A kind of applying modified modenite is processed the method for municipal middle water |
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| CN104152378B (en) * | 2014-08-01 | 2017-01-11 | 河北协同环保科技股份有限公司 | Compound microbial agent for anaerobic digestion treatment of sludge and production method of compound microbial agent |
| CN104388348A (en) * | 2014-11-21 | 2015-03-04 | 上海寄绿生物环保科技有限公司 | Microbial preparation for purifying sewage and deodorizing garbage and preparation method thereof |
| CN105624072A (en) * | 2016-03-17 | 2016-06-01 | 中国科学院合肥物质科学研究院 | Active microbial agent for deodorizing livestock and poultry feces and preparation method thereof |
| CN106115811A (en) * | 2016-07-29 | 2016-11-16 | 含山县科宇环境工程有限公司 | A kind of industrial sewage treating agent and preparation method |
| CN106430848B (en) * | 2016-11-18 | 2019-04-09 | 广州南大环保科技有限公司 | A kind of industrial sewage process method |
| CN106698640A (en) * | 2017-01-14 | 2017-05-24 | 冯志祥 | Wastewater deodorant and preparation method thereof |
| CN112980741A (en) * | 2021-04-22 | 2021-06-18 | 青海洁神环境科技股份有限公司 | Compound microbial agent for sewage treatment and preparation method and application thereof |
| CN115463645A (en) * | 2022-09-26 | 2022-12-13 | 江苏和合环保集团有限公司 | Solid waste deodorization adsorbent and preparation method thereof |
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| CN102524160B (en) * | 2012-01-16 | 2014-08-20 | 中国环境科学研究院 | Water treatment system adopting molecular sieves prepared from flyash of power plants for filtration |
| CN103319048A (en) * | 2013-06-29 | 2013-09-25 | 惠州市众惠环保工程有限公司 | Method for recycling moisture from high-concentration organic sewage |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376094A (en) * | 2008-10-13 | 2009-03-04 | 郑州航空工业管理学院 | Method for preparing modified coal ash phosphorus sorbent and uses thereof |
| CN101503664A (en) * | 2009-03-12 | 2009-08-12 | 沈阳惠泽生物制品有限公司 | Method for producing efficient composite microbial preparation by livestock and poultry liquid dung |
| CN102344181A (en) * | 2011-06-20 | 2012-02-08 | 河南省科学院化学研究所有限公司 | Water purifying filter core |
| CN102732452A (en) * | 2012-05-23 | 2012-10-17 | 绍兴虞林生物科技有限公司 | Biological deodorant |
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| CN104710079B (en) | 2016-05-25 |
| CN104710079A (en) | 2015-06-17 |
| CN103755107A (en) | 2014-04-30 |
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