IP Library Granted Patent US 9,278,876
Granted Patent B2
US 9,278,876 · App. 13/322,335 · Granted Mar 8, 2016

Treatment of waste product

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Quick Facts
Patent No.
US 9,278,876
App. No.
13/322,335
Granted
Mar 8, 2016
Kind
B2
Abstract

Technologies are generally described for a treatment system and a method for treating waste product. In some examples, the treatment system may include a container effective to receive a waste product. The treatment system may further include one or more filters in communication with the container. The filter or filters may include a polymer carrier material. The polymer carrier material may include at least one of Sphingomonas bacteria, Flavobacteriales bacteria or Chryseobacterium bacteria.

Claims (45)

1. A treatment system comprising:

a pretreatment system configured to receive wastewater, the wastewater including a waste product, the waste product including nitro compounds including trinitrotoluene (TNT), the pretreatment system comprising:

a micro-electrolysis tank configured to receive the wastewater and to convert the nitro compounds in the waste product into aniline compounds to produce micro-electrolyzed wastewater;

an equalization tank configured to receive the micro-electrolyzed wastewater from the micro-electrolysis tank and to adjust a pH value of the micro-electrolyzed wastewater, wherein the equalization tank converts ferric ions and ferrous ions into ferric hydroxide and ferrous hydroxide respectively and produce equalized wastewater; and

a sedimentation tank configured to receive the equalized wastewater and precipitate the ferric hydroxide and the ferrous hydroxide to produce pretreated wastewater;

a container configured to receive the pretreated wastewater;

a first filter in communication with the container, wherein the first filter includes a first polymer carrier material, and wherein the first polymer carrier material includes Sphingomonas sp. in the first polymer material; and

a second filter in communication with the first filter, wherein the second filter includes a second polymer carrier material, and wherein the second polymer carrier material includes Flavobacteriales sp. in the second polymer material.

2. The treatment system of claim 1 , wherein:

the first filter is at least one of an immobilized microorganisms anaerobic filter or an immobilized microorganisms biological aerated filter;

the second filter is at least one of an immobilized microorganisms anaerobic filter or an immobilized microorganisms biological aerated filter; and

the first and second polymer carrier material is a polyurethane foam carrier.

3. The treatment system of claim 1 , wherein:

the first filter comprises a three level immobilized microorganisms anaerobic filter; and

the second filter comprises a five level immobilized microorganisms biological aerated filter.

4. The treatment system of claim 1 , wherein:

the first filter comprises an immobilized microorganisms anaerobic filter that includes Pseudomonas sp. and Sphingomonas sp. in the first polymer carrier material, and

the second filter comprises an immobilized microorganisms biological aerated filter that includes Flavobacteriales sp. and Chryseobacterium sp. in the second polymer carrier material.

5. The treatment system of claim 1 , wherein the equalization tank is configured to receive and adjust a pH of the waste product to from about 6 to about 9 and the settlement tank is configured to remove suspended substances from the waste product.

6. The treatment system of claim 1 , wherein the equalization tank is configured to add NaOH and trisodium phosphate to the micro-electrolyzed wastewater.

7. The treatment system of claim 1 , wherein the waste product comprises organic wastewater from the production of trinitrotoluene.

8. The treatment system of claim 7 , wherein the organic wastewater from the production of trinitrotoluene includes at least one of dinitro-toluene (DNT), 2-nitrotoluene (MNT), a nitrobenzene and a phenyl amine.

9. A method for treating waste product, the method comprising:

receiving wastewater, the wastewater including a waste product, the waste product including nitro compounds including trinitrotoluene (TNT);

micro-electrolyzing the wastewater to convert the nitro compounds in the waste product into aniline compounds and produce micro-electrolyzed wastewater;

equalizing the micro-electrolyzed wastewater to adjust a pH value of the micro-electrolyzed wastewater, wherein the equalization converts ferric ions and ferrous ions into ferric hydroxide and ferrous hydroxide respectively to produce equalized wastewater; and

sedimenting the equalized wastewater to precipitate the ferric hydroxide and the ferrous hydroxide to produce pretreated wastewater;

filtering the pretreated wastewater through a first filter to produce filtered waste product; and

filtering the filtered waste product through a second filter;

wherein

the first filter includes a first polymer carrier material, and wherein the first polymer carrier material includes Sphingomonas sp. in the first polymer material; and

the second filter includes a second polymer carrier material, and wherein the second polymer carrier material includes Flavobacteriales sp. in the second polymer material.

10. The method of claim 9 , wherein:

the first filter is an immobilized microorganisms anaerobic filter including the Pseudomonas sp. bacteria and Sphingomonas sp. bacteria; and

wherein the second filter is an immobilized microorganisms biological aerated filter including the Flavobacteriales bacteria and the Chryseobacterium bacteria.

11. The method of claim 9 , wherein the first filter further comprises Raoultella terrigena sp.

12. The method of claim 9 , wherein the equalization tank is configured to receive and adjust a pH of the micro-electrolyzed wastewater to from about 6 to about 9 and the settlement tank is configured to remove suspended substances from the equalized wastewater.

13. The method of claim 9 , wherein the waste product comprises organic wastewater from the production of trinitrotoluene.

14. The method of claim 13 , wherein the organic wastewater comprises at least one of dinitro-toluene (DNT), 2-nitrotoluene (MNT), a nitrobenzene and a phenyl amine.

15. A pre-treatment system comprising:

a micro-electrolysis tank configured to receive wastewater, the wastewater including a waste product, the waste product including nitro compounds including trinitrotoluene (TNT), the micro-electrolysis tank further configured to convert the nitro compounds in the waste product into aniline compounds to produce micro-electrolyzed wastewater;

an equalization tank configured to receive the micro-electrolyzed wastewater from the micro-electrolysis tank and to adjust a pH value of the micro-electrolyzed wastewater, wherein the equalization tank converts ferric ions and ferrous ions into ferric hydroxide and ferrous hydroxide respectively to produce equalized wastewater; and

a sedimentation tank configured to receive the equalized wastewater and precipitate the ferric hydroxide and the ferrous hydroxide to produce pretreated wastewater.

16. The pre-treatment system of claim 15 , wherein the equalization tank is configured to receive and adjust a pH of the micro-electrolyzed wastewater to from about 6 to about 9 and the settlement tank is configured to remove suspended substances from the equalized wastewater.

17. The pre-treatment system of claim 15 , wherein the equalization tank is configured to add NaOH and trisodium phosphate to the micro-electrolyzed wastewater.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Jul 31, 2019
From: CRESTLINE DIRECT FINANCE, L.P.
To: EMPIRE TECHNOLOGY DEVELOPMENT LLC
Reel/Frame 049924/0794 →
SECURITY INTEREST Recorded Jan 29, 2019
From: EMPIRE TECHNOLOGY DEVELOPMENT LLC
To: CRESTLINE DIRECT FINANCE, L.P.
Reel/Frame 048373/0217 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2012
From: YE, ZHENGFANG
To: PEKING UNIVERSITY
Reel/Frame 027842/0669 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 23, 2011
From: YE, ZHENGFANG; WANG, ZHONGYOU; ZHANG, MOHE
To: PEKING UNIVERSITY
Reel/Frame 027273/0579 →