UCSC Real-Time Waste Metrics for Weight-Based Recharge and Diversion

UCSC Real-Time Waste Metricsfor Weight-Based Recharge and Diversion

Roger J. Edberg, Senior Superintendent and Bradley E. Angell, AnalystGrounds Services, UC Santa Cruz

California Higher Education Sustainability Conference, CSU San DiegoWednesday, June 18, 2014 at 1:00 – 2:15 PM

UCSC Recharge & DiversionRoger J. Edberg & Bradley E. Angell

UCSC Grounds Material Recovery Structure

2,199 (62%)

2,782

3,677

2,799 (51%)

894 (24%)

1,369

1,805 (54%)

3,568

16,08714,542

5,422 16,752

Resource Recovery Trends, UCSC

Student Population

Total Recovery

Refuse

Tota

l Dive

rsio

n

Other Diversion

Recycling

Cardboard

tons

tons

tons

tons

tons

Food Waste

2,316 (57%)

2004 2005 2006 2007 2008 2009 2010 2011 2012 20130

1,000

2,000

3,000

4,000

5,000


Operational / Billing Data


1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 20130

500

1000

1500

2000

2500

3000

3500

180

895

1096 1156

2158

2799

2054

2315

1806

2199

2602.26

27282756

2661

2877

2623

1938

1772 1544.4

1369

6.5%

Campus-wide Diversion Data Collection

30.3%28.5%24.7%

53.9%

61.6%

56.6%

42.9%

51.6%

51.5%

REFUSE

DIVERSION

DIVERSION RATE

TO

NS

YEAR UCSC Recharge & DiversionRoger J. Edberg & Bradley E. Angell


Billing Structure vs. Diversion Goals

6 cubic yards7 services$8 / cu.yd. $ 336 revenue

6 cu.yd.

$ 336

7 services


Data Maniac

UC Santa Cruz

UC Davis

Installing the Loadman System

on-fork scales

scale processor

on-board meter

cell modem

gps antennae


Error Rates and a Practice in Accuracy

10

/12

11

/12

12

/12

1/1

3

2/1

3

3/1

3

3/1

3

4/1

3

5/1

3

-100%

-90%

-80%

-70%

-60%

-50%

-40%

-30%

-20%

-10%

0%

10%

20%

30%

Refuse

Cardboard

+ 5%

- 5%



“Don’t enjoy picking up empty dumpsters.”

D J F M A M J J A S O N D J J0

100

200

300

400

500

600

700

800

900

1000

2013 Weights2013 Mean2013 Median2013 ModeMonthly MeansMonthly MeidansMonthly Modes

pounds

Monthly Values for 2013

Annual Mean: 173 pounds

Annual Median: 138 pounds

Annual Mode: 30 pounds

PHYS-PLNT-N Dumpster Sonar Test

Python

text

html

excel


Testing the first Smart Dumpster


A Digital Three-Legged Stool19

-Aug

26-A

ug

2-Se

p

9-Se

p

16-S

ep

23-S

ep

30-S

ep

7-O

ct

14-O

ct

21-O

ct

28-O

ct

4-No

v

11-N

ov

18-N

ov

25-N

ov

-50

0

50

100

150

200

250

300

350

400

450

500

493 pounds

49

238

66

Driver Entry

36%

74%

5%

Battery Failure

a

b

Loadman

Smart Dumpster


UCSC Recharge & DiversionBradley E. Angell

Last Year’s Analysis: DARC & ENGINEERING 2

Digital Arts Research Center

Baskin Engineering

May 2013

May 2013

REFUSE Cost per Pound$432 / 1,025 lbs = $0.42 per pound

CARDBOARD Cost per Pound$288 / 344 lbs = $0.83 per pound

REFUSE Cost per Pound$1,344 / 5,067 lbs = $0.26 per pound

CARDBOARD Cost per Pound$768 / 434 lbs = $1.77 per pound


Conclusion: Impacts on Practice


Conclusion: Future Resource Recovery at UCSC

Contact Information: Bradley E. Angell(831) [email protected]


Questions or Comments?

UCSC Real-Time Waste Metrics for Weight-Based Recharge and Diversion

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