CN104710079A - Method for utilizing modified mordenite to treat urban recycled water - Google Patents

Method for utilizing modified mordenite to treat urban recycled water Download PDF

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CN104710079A
CN104710079A CN201510114472.4A CN201510114472A CN104710079A CN 104710079 A CN104710079 A CN 104710079A CN 201510114472 A CN201510114472 A CN 201510114472A CN 104710079 A CN104710079 A CN 104710079A
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water
biological
individual
fly ash
treatment
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CN201510114472.4A
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CN104710079B (en
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刘冬峰
张丽萍
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刘冬峰
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Abstract

The invention discloses a method for utilizing modified mordenite to treat urban recycled water. The COD value of the recycled water is 65-95 mg/L. The method is characterized by comprising fly ash adsorbent treatment, biological deodorant treatment, biological purificant treatment and modified mordenite adsorption treatment which are sequentially carried out. According to the method, a fly ash adsorbent can adsorb large-grain organic substances in water; a biological deodorant can eliminate abnormal smell in water; a biological purificant can consume residual organic substances in water; modified mordenite can efficiently remove calcium-magnesium ions, fluorine ions and other heavy metal ions in sewage.

Description

A kind of method of applying modified mordenite process municipal middle water
Technical field
The present invention is the divisional application of application for a patent for invention " a kind of deep treatment method of municipal middle water " (application number: 201410057403X) that on February 20th, 2014 submits to.Belong to municipal sewage treatment field of Environment Protection, particularly relate to a kind of method of applying modified mordenite process 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 method of applying modified mordenite process 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 kind of method of applying modified mordenite process 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 mordenite 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 between 0.8-2.8:100, and 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: 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 0.1-0.8:100, and 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 between 0.8-6.8:100, 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 mordenite 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, and the thickness ratio of quartz sand layer and modified zeolite layer is 1:0.5-0.8; The modification procedure of described modified mordenite 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; 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.
Preferably, in described modification procedure, the volumetric molar concentration of phosphoric acid is 0.9-1.3mol/L, is 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 mordenite 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.
Embodiment
Below in conjunction with specific embodiment, the present invention is further elaborated.
Embodiment 1
Process a 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 method for applying modified mordenite process 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 mordenite 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 mordenite 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 method for applying modified mordenite process 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 mordenite 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 mordenite 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, it 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 method for an applying modified mordenite process 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 mordenite 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 between 0.8-2.8:100, and 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: 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 0.1-0.8:100, and 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 between 0.8-6.8:100, 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 mordenite 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 from the bottom up successively, quartz sand layer and modified zeolite layer, 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, the modification procedure of described modified mordenite is: by mordenite, kaolin, silicon magnesium glue, sesbania powder and phosphoric acid mix 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, 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.
CN201510114472.4A 2014-02-20 2014-02-20 A kind of applying modified modenite is processed the method for municipal middle water CN104710079B (en)

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CN102524160A (en) * 2012-01-16 2012-07-04 中国环境科学研究院 Water treatment system adopting molecular sieves prepared from flyash of power plants for filtration
CN102732452A (en) * 2012-05-23 2012-10-17 绍兴虞林生物科技有限公司 Biological deodorant
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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