Tag Archives: sludge

Process for treating sludge generated after sewage treatment

Application Number: 00113224Application Date: 2000.01.14Publication Number: 1305976Publication Date: 2001.08.01Priority Information: International: C05F7/00Applicant(s) Name: Zeng ZhiyongAddress: Inventor(s) Name: Zeng ZhiyongPatent Agency Code: 43113Patent Agent: lu hongAbstract A process for processing the mud generated after treating sewage to obtain fertilizer includes adding ferrous sulfate (0.2 Kg/cu.m), mixing, dewatering, measuring the content of N,P and K in the… Read More »

Lime producing process utilizing dicyandiamide sludge as material

Application Number: 00113513Application Date: 2000.06.27Publication Number: 1277164Publication Date: 2000.12.20Priority Information: International: B09B3/00;C04B2/02;C04B2/10Applicant(s) Name: Zeng QiuchengAddress: Inventor(s) Name: Zeng Qiucheng;Zeng Guanghong;Zeng PingPatent Agency Code: 43105Patent Agent: xiao meizheAbstract The lime producing process features the high-temperature calcination of dicycandiamide sludge with small amount of anthracite and includes the steps of material preparation, making blank with sludge, calcination… Read More »

Process for preparing compound organic fertilizer from municipal sludge

Application Number: 00113760Application Date: 2000.03.16Publication Number: 1266832Publication Date: 2000.09.20Priority Information: International: C05F7/00;C05F17/00;C05G1/00Applicant(s) Name: Xibei Agricultural and Forestry Sciences and Technology Univ.Address: Inventor(s) Name: Zhang ZengqiangPatent Agency Code: 61202Patent Agent: li wenxiAbstract A process for preparing compound organic fertilizer from municipal sludge includes mixing the zeolite as swelling amendment with said sludge, aerobic fermentation, adding inorganic… Read More »

Organic complex fertilizer produced by utilizing beer active sludge and its production method

Application Number: 00114561Application Date: 2000.05.12Publication Number: 1272478Publication Date: 2000.11.08Priority Information: International: C05F5/00;C05G1/00Applicant(s) Name: Kaike Industry Co., Ltd., Xianning Prefecture, Hubei Prov.Address: Inventor(s) Name: Yang Xiangliang;Lu Xiaohua;Wu HeigenPatent Agency Code: 42201Patent Agent: ji yuanAbstract On the basis of analyzing its main nutrient component contents, the commercial nitrogen fertilizer, phosphoric fertilizer and potassium fertilizer and a certain… Read More »

Sludge desulfation method for fume

Application Number: 00115007Application Date: 2000.03.21Publication Number: 1314201Publication Date: 2001.09.26Priority Information: International: B01D53/75Applicant(s) Name: Zhu NanwenAddress: Inventor(s) Name: Zhu Nanwen;Gao Tingyao;Wang ShifangPatent Agency Code: 31128Patent Agent: li gaodongAbstract The sludge desulfating process of fume includes the following steps: the water washing and cooling of fume in washing tower, the reaction of washed fume with biological sludge… Read More »

Naphthenic acid and fuel oil producing process by using acid sludge as material

Application Number: 00110547Application Date: 2000.06.19Publication Number: 1277182Publication Date: 2000.12.20Priority Information: International: C07C57/00;C10L1/00Applicant(s) Name: Hu YueAddress: Inventor(s) Name: Hu Yue;Yuan Sai;Hu LingnaPatent Agency Code: 21207Patent Agent: li yutongAbstract Acid sludge is first mixed with alkali solution to depolymerize and dewater and then mixed with ethyl ether or petroleum ether to deoil; the mother liquor is mixed… Read More »

Technological process using electroplating sludge as resource to make harmless treatment

Application Number: 00117130Application Date: 2000.06.06Publication Number: 1272408Publication Date: 2000.11.08Priority Information: International: B03B7/00;B09B3/00Applicant(s) Name: Guangdong Polytechnic Univ.Address: Inventor(s) Name: Chen Fanzhi;Chen Gankang;Nie XiaojunPatent Agency Code: 44102Patent Agent: lin limengAbstract A technological process for treating sludge produced by electroplating process includes the following steps: 1. using dilute acid to leach out all valuable metals from electroplating sludge… Read More »

Comprehensive acid sludge and caustic sludge treating process

Application Number: 00110701Application Date: 2000.07.24Publication Number: 1335353Publication Date: 2002.02.13Priority Information: International: A62D3/00;C10G17/10;C10G19/08Applicant(s) Name: China Petrochemical Corp., Ltd.Address: Inventor(s) Name: Liu ZhongshengPatent Agency Code: 21102Patent Agent: li weiAbstract The present invention relates to the comprehensive treating process of acid sludge and caustic sludge. The acid sludge is cracked at middle temperature into gas containing SO2, the… Read More »

Intermittent sewage feeding and intermittent aerobic active sludge sewage treatment process

Application Number: 00117510Application Date: 2000.10.18Publication Number: 1287102Publication Date: 2001.03.14Priority Information: International: C02F9/14Applicant(s) Name: Yang YongshuiAddress: Inventor(s) Name: Yang YongshuiPatent Agency Code: 00000Patent Agent: Abstract The sewage treatment process includes the solid-liquid separation of sewage, pH value regulation, aeration and precipitation in aeration basin, and filtering in carbon filtering basin. It features that after repeated aeration… Read More »

Caustic sludge effluent treating process

Application Number: 00110702Application Date: 2000.07.24Publication Number: 1335275Publication Date: 2002.02.13Priority Information: International: C02F9/14;C02F11/02Applicant(s) Name: China Petrochemical Corp., Ltd.Address: Inventor(s) Name: Cui Feng;Li Yong;Han JianhuaPatent Agency Code: 21102Patent Agent: li weiAbstract The treatment of caustic sludge effluent with high COD content and high inorganic salt content utilizes membrane bioreactor. Effluent is treated first biochemically via active sludge… Read More »

Method for preparing subnanolevel ultrafine calcium carbonate by using caustic sludge

Application Number: 00123758Application Date: 2000.09.06Publication Number: 1341560Publication Date: 2002.03.27Priority Information: International: C01F11/18Applicant(s) Name: Qiao XihaiAddress: Inventor(s) Name: Qiao XihaiPatent Agency Code: 00000Patent Agent: Abstract The method for preparing subnanometer level superfine calcium carbonate by using alkaline residue discharged in the course of soda production with ammonia-soda process as raw material includes the following steps: stirring… Read More »

Process for synthesizing maleate ester sludge

Application Number: 00110964Application Date: 2000.03.30Publication Number: 1315479Publication Date: 2001.10.03Priority Information: International: C09J135/00Applicant(s) Name: Kaida Industry (Group) Co Ltd, QingdaoAddress: Inventor(s) Name: Zhang Qiang;Zheng Kexing;Liu HePatent Agency Code: 37101Patent Agent: yang bingliAbstract A process for synthesizing maleate size for natural or chemical fibres includes such steps as esterification reaction of meleic acid or maleic anhydride, alkali… Read More »

Digesting treatment of city domestic garbage and sludge

Application Number: 00124817Application Date: 2000.09.18Publication Number: 1299710Publication Date: 2001.06.20Priority Information: International: B09B3/00;C02F11/00Applicant(s) Name: Han HongboAddress: Inventor(s) Name: han HongboPatent Agency Code: 00000Patent Agent: Abstract The present invention adopts resolution method, and directly uses saturated steam with a certain pressure to implement innocent treatment of urban domestic refuse and sludge in special-made resolution tank, after 2… Read More »

Sludge roasting process of producing haydite

Application Number: 00111382Application Date: 2000.09.21Publication Number: 1344697Publication Date: 2002.04.17Priority Information: International: C04B38/00;C04B38/06Applicant(s) Name: Wang ShenAddress: Inventor(s) Name: Jia Zhendian;Wang ShenPatent Agency Code: 00000Patent Agent: Abstract The present invention roasts light and high strength haydite by using sludge containing organic matter 3-15 wt% and sand 5 wt% as material and roasting in monocylinder rotary kiln with… Read More »

Production process of inorganic composite fertilizer with SO2 absorbing sludge

Application Number: 00125371Application Date: 2000.09.21Publication Number: 1284488Publication Date: 2001.02.21Priority Information: International: B01D53/50;B09B3/00;C05D11/00;C05G5/00Applicant(s) Name: Shi HanxiangAddress: Inventor(s) Name: Shi HanxiangPatent Agency Code: 33102Patent Agent: yuan zhongweiAbstract The present invention can change waste into useful-material and prevent secondary pollution. The product from the reaction between ground slag and SO2 reacts with gypsum in a settling tank, and… Read More »

Making process of flower pot and planting disc with sludge containing animal manure

Application Number: 00112725Application Date: 2000.03.03Publication Number: 1265266Publication Date: 2000.09.06Priority Information: International: A01G9/02;A01G9/10Applicant(s) Name: Wang ZhengtengAddress: Inventor(s) Name: Guo MengdePatent Agency Code: 53100Patent Agent: chen zuoAbstract The present invention relates to the field of agriculture and gardening and includes sludge collection, concentration, stabilization,dewatering and other steps. It features that sludge with 78-83% water content and waste… Read More »

Method of utilizing yellow phosphorus sludge to produce building material

Application Number: 00109959Application Date: 2000.07.27Publication Number: 1336345Publication Date: 2002.02.20Priority Information: International: C04B18/04;C04B28/22Applicant(s) Name: Deng HuiqingAddress: Inventor(s) Name: Deng HuiqingPatent Agency Code: 52100Patent Agent: yu dunhanAbstract The present invention relates to method of making construction material using yellow phosphorus waste slag, the yellow phosphosus waste slag is ground into powder, blending according to phosphorus, cement:lime:soot powder… Read More »

Sludge de-watering drying system

Application Number: 00108586Application Date: 2000.05.18Publication Number: 1274687Publication Date: 2000.11.29Priority Information: 2000/3/21 KR 14235/2000; 1999/5/20 KR 18302/1999International: C02F11/14Applicant(s) Name: Bak Sae-JonAddress: Inventor(s) Name: Bak Sae-JonPatent Agency Code: 11038Patent Agent: he tengyunAbstract The object of this invention is to provide a sludge dehydration and dry system. This system feeds sludge-laden waste liquid from a sludge inlet unit… Read More »

Process for dewatering air-floated sludge in water works

Application Number: 00107737Application Date: 2000.05.25Publication Number: 1325826Publication Date: 2001.12.12Priority Information: International: C02F11/14Applicant(s) Name: Ye ChunAddress: Inventor(s) Name: Ye Chun;Duan Jiyi;Wang GuodongPatent Agency Code: 00000Patent Agent: Abstract A process for dewatering air-floated sludge in water works includes such steps as regulating water content in regulating settling pool, primary concentrating, storing the concentrated sludge in storage pool,… Read More »

High-iron sulfuric acid sludge cement

Application Number: 00107675Application Date: 2000.05.23Publication Number: 1324778Publication Date: 2001.12.05Priority Information: International: C04B7/24;C04B24/00Applicant(s) Name: Youhe Panbao Science & Technology Development Co., Ltd., BeijingAddress: Inventor(s) Name: Wu YanxiongPatent Agency Code: 00000Patent Agent: Abstract The present invention relates to a sulfate superferric cement made up by utilizing the offscum produced in the production of sulfuric acid, and its… Read More »

Zn-Co sludge treating method

Application Number: 00102775Application Date: 2000.02.21Publication Number: 1310242Publication Date: 2001.08.29Priority Information: International: C22B3/14;C22B7/00Applicant(s) Name: Beijing Non-ferrous Metallurgy Design and Research General Inst.Address: Inventor(s) Name: Li Guomin;Liu Cheng;Dong AiguoPatent Agency Code: 11234Patent Agent: wan huatangAbstract The present invention relates to the method of treating Zn-Co sludge at 40-90 deg.c while stirring, adding zinc powder to eliminate impurity,… Read More »