Method for recovering phosphorus and iron and use thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12091345
APP PUB NO 20240228349A1
SERIAL NO

18405089

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Present disclosure discloses a method for recovering phosphorus and iron, and use thereof. The method comprises the following steps of: S1: mixing iron salt and phosphorus-containing sewage according to the amount of the phosphorus-containing sewage to obtain a mixture, the concentration of the iron salt in the obtained mixture being 4 mg/L to 25 mg/L, fermenting the mixture at 20° C. to 60° C. for 2 days to 10 days, taking a fermentation supernatant, and removing the impurities; and S2: oxidizing the fermentation supernatant subjected to impurity removal in an acidic system. The present disclosure provides the method for recovering phosphorus and iron, which realizes high efficient recycling of phosphorus resources in sludge.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOLNO 2279 LISHUI ROAD TAOYUAN STREET NANSHAN DISTRICT SHENZHEN CITY GUANGDONG PROVINCE 518071 SHENZHEN CITY GUANGDONG PROVINCE 518071

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Yijiao Guangdong, CN 1 0
Li, Bing Guangdong, CN 454 3928
Li, Xiao-yan Guangdong, CN 6 19
Liang, Zhu Guangdong, CN 45 511
Lin, Lin Guangdong, CN 257 1731
Wang, Xuan Guangdong, CN 144 921

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Mar 17, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 17, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 17, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00