Class information for:
Level 1: SLOW SAND FILTER//ROUGHING FILTERS//SLOW SAND FILTRATION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
18590 545 20.5 36%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
399 3       ENGINEERING, ENVIRONMENTAL//WATER SCIENCE AND TECHNOLOGY//WATER RESOURCES 30225
1795 2             STRUVITE//MORINGA OLEIFERA//PHOSPHORUS RECOVERY 6314
18590 1                   SLOW SAND FILTER//ROUGHING FILTERS//SLOW SAND FILTRATION 545

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 SLOW SAND FILTER authKW 823585 4% 70% 21
2 ROUGHING FILTERS authKW 325971 1% 73% 8
3 SLOW SAND FILTRATION authKW 269648 3% 25% 19
4 SCHMUTZDECKE authKW 256117 1% 57% 8
5 COLLAPSE PULSING authKW 252119 1% 75% 6
6 JOURNAL AMERICAN WATER WORKS ASSOCIATION journal 226061 19% 4% 105
7 FLOATING MEDIUM FILTER authKW 224108 1% 100% 4
8 HIGH RATE FILTRATION authKW 179285 1% 80% 4
9 DECLINING RATE FILTRATION authKW 168081 1% 100% 3
10 FILTER RIPENING authKW 149403 1% 67% 4

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Water Resources 30898 63% 0% 346
2 Engineering, Environmental 11414 37% 0% 199
3 Engineering, Civil 7212 32% 0% 173
4 Environmental Sciences 4814 45% 0% 247
5 Limnology 517 4% 0% 21
6 Engineering, Chemical 428 13% 0% 70
7 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 40 1% 0% 7
8 Agricultural Engineering 19 1% 0% 5
9 Marine & Freshwater Biology 10 2% 0% 11
10 Materials Science, Ceramics 4 1% 0% 5

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ENERGARID 74701 0% 67% 2
2 ADV WATER 56027 0% 100% 1
3 BIOGEOCHIM ZONES ARIDES 56027 0% 100% 1
4 BUSINESS UNIT AEROSILSILANES 56027 0% 100% 1
5 CHAIR IND CRSNG EAU POTABLE 56027 0% 100% 1
6 CHAIRE IND COUNSEIL RECH SCI NAT GENIE 56027 0% 100% 1
7 CIS INGN SANIT 56027 0% 100% 1
8 DOMEST ENVIRONM ENGN 56027 0% 100% 1
9 DRINKING WATER MEMBRANES TECHNOL 56027 0% 100% 1
10 ENGN ENVIRONM SERV 35 56027 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 JOURNAL AMERICAN WATER WORKS ASSOCIATION 226061 19% 4% 105
2 JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA 20128 3% 2% 19
3 WATER SCIENCE AND TECHNOLOGY 16382 14% 0% 77
4 JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE 10438 4% 1% 22
5 FILTRATION & SEPARATION 7549 1% 2% 8
6 JOURNAL OF THE ENVIRONMENTAL ENGINEERING DIVISION-ASCE 6300 1% 2% 5
7 WATER RESEARCH 5856 7% 0% 40
8 ENVIRONMENT PROTECTION ENGINEERING 5023 1% 1% 7
9 JOURNAL OF ENVIRONMENTAL ENGINEERING 4302 2% 1% 11
10 DESALINATION AND WATER TREATMENT 3016 4% 0% 21

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 SLOW SAND FILTER 823585 4% 70% 21 Search SLOW+SAND+FILTER Search SLOW+SAND+FILTER
2 ROUGHING FILTERS 325971 1% 73% 8 Search ROUGHING+FILTERS Search ROUGHING+FILTERS
3 SLOW SAND FILTRATION 269648 3% 25% 19 Search SLOW+SAND+FILTRATION Search SLOW+SAND+FILTRATION
4 SCHMUTZDECKE 256117 1% 57% 8 Search SCHMUTZDECKE Search SCHMUTZDECKE
5 COLLAPSE PULSING 252119 1% 75% 6 Search COLLAPSE+PULSING Search COLLAPSE+PULSING
6 FLOATING MEDIUM FILTER 224108 1% 100% 4 Search FLOATING+MEDIUM+FILTER Search FLOATING+MEDIUM+FILTER
7 HIGH RATE FILTRATION 179285 1% 80% 4 Search HIGH+RATE+FILTRATION Search HIGH+RATE+FILTRATION
8 DECLINING RATE FILTRATION 168081 1% 100% 3 Search DECLINING+RATE+FILTRATION Search DECLINING+RATE+FILTRATION
9 FILTER RIPENING 149403 1% 67% 4 Search FILTER+RIPENING Search FILTER+RIPENING
10 RAPID GRAVITY FILTRATION 140063 1% 50% 5 Search RAPID+GRAVITY+FILTRATION Search RAPID+GRAVITY+FILTRATION

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 SLAVIK, I , JEHMLICH, A , UHL, W , (2013) IMPACT OF BACKWASHING PROCEDURES ON DEEP BED FILTRATION PRODUCTIVITY IN DRINKING WATER TREATMENT.WATER RESEARCH. VOL. 47. ISSUE 16. P. 6348-6357 20 83% 3
2 EYVAZ, M , AKGIRAY, O , YUKSEL, E , (2013) AN EXPERIMENTAL INVESTIGATION ON THE HYDRAULIC BEHAVIOR OF DECLINING RATE FILTRATION.DESALINATION AND WATER TREATMENT. VOL. 51. ISSUE 31-33. P. 6137-6147 10 100% 0
3 DABROWSKI, W , (2011) RATIONAL OPERATION OF VARIABLE DECLINING RATE FILTERS.ENVIRONMENT PROTECTION ENGINEERING. VOL. 37. ISSUE 4. P. 35-53 11 92% 2
4 SALKAR, VD , TEMBHURKAR, AR , (2016) EXPERIMENTAL EVALUATION OF RIPENING BEHAVIOR: DOWN-FLOW VS. UP-FLOW RAPID SAND FILTERS.KSCE JOURNAL OF CIVIL ENGINEERING. VOL. 20. ISSUE 4. P. 1221 -1227 12 75% 0
5 LIN, PH , LION, LW , WEBER-SHIRK, ML , BORDLEMAY, CL , (2013) POSTSEDIMENTATION APPLICATION OF POLYALUMINUM CHLORIDE TO ENHANCE DUAL MEDIA FILTER PERFORMANCE.JOURNAL OF ENVIRONMENTAL ENGINEERING. VOL. 139. ISSUE 5. P. 612-617 9 100% 1
6 DAROWSKI, W , SPACZYNSKA, M , MACKIE, RI , (2008) A MODEL TO PREDICT GRANULAR ACTIVATED CARBON BACKWASH CURVES.CLEAN-SOIL AIR WATER. VOL. 36. ISSUE 1. P. 103-110 12 75% 0
7 GOTTINGER, AM , MCMARTIN, DW , PRICE, D , HANSON, B , (2011) THE EFFECTIVENESS OF SLOW SAND FILTERS TO TREAT CANADIAN RURAL PRAIRIE WATER.CANADIAN JOURNAL OF CIVIL ENGINEERING. VOL. 38. ISSUE 4. P. 455-463 13 62% 5
8 HAMILTON, PD , STANDEN, G , PARSONS, SA , (2003) AN ANALYSIS OF PARTICLE MONITOR SENSITIVITY IN POTABLE WATER TREATMENT.JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA. VOL. 52. ISSUE 1. P. 1-11 12 75% 4
9 HAMILTON, PD , STANDEN, G , PARSONS, SA , (2002) USING PARTICLE MONITORS TO MINIMISE CRYPTOSPORIDIUM RISK: A REVIEW.JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA. VOL. 51. ISSUE 7. P. 351-366 18 51% 5
10 LANGENBACH, K , KUSCHK, P , HORN, H , KASTNER, M , (2010) MODELING OF SLOW SAND FILTRATION FOR DISINFECTION OF SECONDARY CLARIFIER EFFLUENT.WATER RESEARCH. VOL. 44. ISSUE 1. P. 159-166 9 75% 13

Classes with closest relation at Level 1


Rank Class id link
1 32983 FLUIDIZED PELLET BED//FLUIDIZED PELLET BED SEPARATOR//PELLET RETENTION TIME
2 29971 ENVIRONM STUDIES CESAR//OZONE-SCIENCE & ENGINEERING//PREOZONATION
3 3587 COAGULATION//POLYALUMINUM CHLORIDE//COMPOSITE COAGULANT
4 2480 COLLOID TRANSPORT//BACTERIAL TRANSPORT//DEEP BED FILTRATION
5 36649 OLIVE STONE BIOMASS//TIO2 V2O5 PHOTOCATALYST//MOLYBDENUM VANADIUM
6 34757 DROP ANALYSIS//LIQUID DROP FINGERPRINT//TENSIOGRAPHY
7 34602 ALGAL YIELD//GRP INVEST ZEOLITAS ACUICULTURA//BOILER FEED
8 5859 ASSIMILABLE ORGANIC CARBON AOC//ASSIMILABLE ORGANIC CARBON//BIOLOGICAL STABILITY
9 26449 RIVERBANK FILTRATION//BANK FILTRATION//BANK FILTRATE
10 21294 DISSOLVED AIR FLOTATION//DISSOLVED AIR FLOTATION DAF//TECNOL MINERAL AMBIENTAL

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